A1 general 10分で読める

Hypothetical Phrases Requ

Build hypotheses by combining `si` with the present tense to express possibilities, deals, and daily plans in French.

The Rule in 30 Seconds

  • Use `si` + Present tense to set a condition or possibility.
  • The result can be in the Present or Imperative (command).
  • Contract `si` to `s'il` only before `il` or `ils` subjects.
  • Never use the Future tense directly after the word `si`.

Quick Reference

Condition (Si + ...) Result Clause Example Sentence
Present Tense Present Tense Si j'ai faim, je mange.
Present Tense Imperative (Command) Si tu es fatigué, dors.
il / ils (Subject) S'il / S'ils S'il pleut, je reste ici.
elle / on (Subject) Si elle / Si on Si elle vient, on sort.
Any Subject Present (Flipped) Je viens si tu viens.
Negative Present Si ce n'est pas bon, je refuse.

主な例文

3 / 10
1

Si tu es libre, on va au café.

If you are free, we go to the cafe.

2

S'il fait beau, je marche dans le parc.

If the weather is nice, I walk in the park.

3

Si elle a faim, elle mange une pomme.

If she is hungry, she eats an apple.

💡

The Logical Handshake

Think of a 'si' clause as a deal. 'If you do this, I do that.' It connects two simple present tense sentences into one logical plan.

⚠️

The Future Trap

Never use the future tense immediately after 'si'. Even if you're talking about next year, the verb following 'si' must be in the present tense.

The Rule in 30 Seconds

  • Use `si` + Present tense to set a condition or possibility.
  • The result can be in the Present or Imperative (command).
  • Contract `si` to `s'il` only before `il` or `ils` subjects.
  • Never use the Future tense directly after the word `si`.

Overview

Ever find yourself caught in a "what if" moment? Maybe you're staring at a menu in a cozy Paris bistro and thinking, "If this cheese is smelly, I want it." Or you're planning a weekend trip and saying, "If it rains, we'll go to the Louvre." That's exactly what hypothetical phrases are for. They let you talk about possibilities, conditions, and "maybe" situations. In French, we call these si clauses. At the A1 level, you don't need to be a philosopher or a time traveler to use them. You just need a few simple patterns to start making deals, giving advice, and planning your next adventure. It’s about adding a layer of "if" to your basic sentences. Without this, your French is a bit too black and white. With it, you start seeing the gray areas, the deals, and the "what-ifs" that make life interesting. Think of it as your first step into the world of French logic. It’s powerful, it’s practical, and honestly, it’s a lot of fun once you stop worrying about being perfect. Just remember: you're not predicting the future, you're just setting the terms of the deal. Yes, even native speakers mess this up sometimes, so don't sweat the small stuff!

How This Grammar Works

At its heart, a hypothetical sentence is a deal between two ideas. "If X happens, then Y follows." The word si is your primary tool here. It’s the French equivalent of "if." You use it to set a condition. Once that condition is met, the rest of the sentence tells you the result. It's like a grammar traffic light: the first part is the "if" light, and the second part is the "go" light. The best part? At this stage, you mostly use the present tense. It’s straightforward, reliable, and gets the job done without any complicated conjugation gymnastics. You’re essentially just gluing two present-tense sentences together with a si and a comma. It’s like building with LEGO bricks. One brick is the condition (si + present), and the other brick is the consequence (present or command). You don't need fancy tenses yet. If you can conjugate être, avoir, and regular -er verbs in the present, you’re already 90% of the way there. The rest is just placement and a little bit of French rhythm. Think of it as a logical handshake between two thoughts.

Formation Pattern

  1. 1Setting up a basic hypothesis in French follows a clear, two-step logic.
  2. 2The Condition: Start with si. Then add your subject and your verb in the present tense. For example: Si tu as faim (If you are hungry).
  3. 3The Result: Add a comma, then tell us what happens. You can use another present tense verb or an imperative (a command). For example: ... mange une pomme (... eat an apple).
  4. 4The "S'il" Rule: If the word after si starts with il or ils, si becomes s'il or s'ils. Think of it as a tiny vocal shortcut. It prevents the "ee-ee" sound of si il which French people find slightly annoying. It’s the grammar equivalent of smoothing out a wrinkle in your shirt.
  5. 5The "No-Go" for others: But wait! This only happens with il. For elle or on, it stays as si elle or si on. No s'elle or s'on allowed! French likes to keep its favorites, and il just happened to win the contraction lottery.
  6. 6Switching order: You can also flip the sentence! Je mange si j'ai faim (I eat if I'm hungry). Notice how the comma disappears when si is in the middle. It’s like the word si acts as the glue, so the comma isn't needed anymore. It's cleaner, faster, and very natural.
  7. 7Reflexive Verbs: These work exactly the same way. Si tu te couches tard, tu es fatigué. (If you go to bed late, you are tired). Just keep the reflexive pronoun in its usual spot.

When To Use It

You'll use this pattern more often than you think. It's the language of daily negotiation and survival.

  • In a Restaurant: "If you have snails, I'll try them." (Si vous avez des escargots, j'essaie.) Or, "If the wine is good, I'll take a bottle." (Si le vin est bon, je prends une bouteille.) This is how you negotiate your way to a great meal.
  • Asking Directions: "If I turn left here, is it the museum?" (Si je tourne à gauche ici, c'est le musée ?) This is a lifesaver when you're lost in a new city and your GPS is being moody or you've accidentally ended up in a bakery instead of the Louvre.
  • Planning with Friends: "If you're free tonight, let's go to the cinema." (Si tu es libre ce soir, allons au cinéma.) It’s the perfect way to make plans without being too pushy. It gives your friend an "out" if they're actually busy watching Netflix.
  • At Work or School: "If you don't understand, ask the teacher." (Si vous ne comprenez pas, demandez au professeur.)
  • Shopping: "If this dress is expensive, I don't buy it." (Si cette robe est chère, je ne l'achète pas.)

It makes you sound much more flexible and conversational. Instead of just stating facts, you’re interacting with the world. You're not just a robot reciting verbs; you're a negotiator!

When Not To Use It

Don't get ahead of yourself! As an A1 learner, you should avoid using si for a few things to keep your sanity and avoid grammar-induced meltdowns.

  • Past Regrets: "If I had known..." This requires the pluperfect and conditional. It’s a one-way ticket to a headache right now. Save it for your B1 year when you're feeling more adventurous.
  • Imaginary Worlds: "If I were a billionaire..." This uses the imperfect and conditional. Again, this is for later. Stick to things that are actually possible today or tomorrow. No need to build castles in the sky just yet.
  • Absolute Certainty: If something is definitely going to happen, use quand (when) instead. Si is for the "maybe" pile. For example, don't say "If I go to bed tonight..." unless you're planning on staying up forever. Use Quand there. It sounds a bit existential otherwise.
  • Future Tense after Si: This is the most important rule. Never put the future tense directly after si. It’s always the present. Even if you’re talking about next week. "If I come next week" is Si je viens la semaine prochaine, NOT Si je viendrai. French is strict about this one, like a librarian shushing you for being too loud.

Common Mistakes

Even native speakers stumble sometimes, but you can avoid these classic traps and look like a pro:

  • The "S'elle" Mistake: I know it’s tempting to contract si with everything because it sounds cool, but it ONLY works with il and ils. Saying s'elle sounds like you’re trying to invent a new language. Stick to si elle. It’s a bit more work, but it’s the correct way.
  • Mixing Tenses: Beginners often try to use the English "will" logic. "If it will rain..." (which we don't even say in English, but we think it). In French, the si part stays in the present. Think of the si clause as an anchor—it stays grounded in the present while the rest of the sentence can look ahead.
  • Forgetting the Comma: While you’re speaking, you can’t see the comma, but in writing, it’s a vital signpost. Without it, your sentences can get a bit blurry. It's like driving without lane markers—possible, but unnecessarily stressful.
  • Double 'Si': Sometimes people try to say "If... if..." No, you only need one si to set the condition. If you use two, you're basically double-booking your logic.
  • Pronunciation: Don't forget that the i in si is short and sharp. It’s not "see-ee," it’s si. Think of it like a quick little tap on a piano key.

Contrast With Similar Patterns

How do you know when to use si instead of other "joining" words? Here’s the breakdown:

  • Si vs Quand: This is the big one. Si is for "Maybe yes, maybe no." Quand is for "It will happen, I just don't know exactly when." If you say Si je rentre à la maison (If I go home), people will ask why you might not go home! Are you planning a secret life in a forest? Probably not. Use Quand for your daily routine.
  • Si vs Comme: Comme (Since/As) is used when the reason is already known and agreed upon. "As it's raining, I have an umbrella." Si would be "If it's raining (I'm not sure), I have an umbrella." One is a fact, the other is a possibility.
  • Si vs Peut-être: Peut-être means "maybe" as an adverb. Si is a conjunction that connects two ideas. You can't replace one with the other. "Maybe he's here" is Peut-être qu'il est ici. "If he is here, I'm happy" is S'il est ici, je suis content. One describes a state, the other sets a condition.

Quick FAQ

Q. Can I use si to mean "yes"?

A. Yes! But only to contradict a negative question. "You're not coming?" "Si!" (Yes, I am!). Don't use it for a normal "yes." It's like a linguistic "actually!"

Q. Is si always followed by a verb?

A. Usually, yes. You need a subject and a verb to make a full hypothesis. You can't just say "If the cat." You need "If the cat eats."

Q. What about s'on?

A. No! Just like si elle, it stays si on. No contraction. French can be picky about its vowels.

Q. Can I use two si clauses in one sentence?

A. You can, but it gets messy. "If it's cold and if it's raining..." Better to say "If it's cold and it's raining" (Si il fait froid et qu'il pleut). It’s much more elegant.

Q. Does the result have to be in the present?

A. At A1, yes. You can also use the imperative (a command). "If you're tired, sleep!" (Si tu es fatigué, dors !). It’s very direct and effective.

Q. Is there a formal version of si?

A. Not really. Si is the standard word for everyone, from the President to your neighbor. It’s a very democratic little word.

Q. Can si be used for "how"?

A. No, that's comment. Si is strictly for "if" or "whether." Don't mix them up or you'll be asking "If are you?" which makes no sense.

Q. Does si change with gender?

A. Nope. Si is an invariable word. It stays exactly the same whether you're talking about a boy, a girl, or a cat. One less thing to worry about!

Reference Table

Condition (Si + ...) Result Clause Example Sentence
Present Tense Present Tense Si j'ai faim, je mange.
Present Tense Imperative (Command) Si tu es fatigué, dors.
il / ils (Subject) S'il / S'ils S'il pleut, je reste ici.
elle / on (Subject) Si elle / Si on Si elle vient, on sort.
Any Subject Present (Flipped) Je viens si tu viens.
Negative Present Si ce n'est pas bon, je refuse.
💡

The Logical Handshake

Think of a 'si' clause as a deal. 'If you do this, I do that.' It connects two simple present tense sentences into one logical plan.

⚠️

The Future Trap

Never use the future tense immediately after 'si'. Even if you're talking about next year, the verb following 'si' must be in the present tense.

🎯

The Commaless Flip

Want to sound more natural? Put 'si' in the middle of the sentence! Just remember to remove the comma: 'Je viens si tu m'invites.'

💬

The Contradictory Si

In France, if someone asks a negative question like 'You aren't hungry?', you answer with 'Si!' to say 'Actually, yes I am!'

例文

10
#1 Basic hypothesis

Si tu es libre, on va au café.

Focus: Si tu es

If you are free, we go to the cafe.

Standard A1 structure: present + present.

#2 With contraction

S'il fait beau, je marche dans le parc.

Focus: S'il fait

If the weather is nice, I walk in the park.

Notice the contraction 's'il' before 'il'.

#3 No contraction (feminine)

Si elle a faim, elle mange une pomme.

Focus: Si elle a

If she is hungry, she eats an apple.

We do NOT contract 'si' before 'elle'.

#4 Flipped order

Je suis content si on gagne.

Focus: si on gagne

I am happy if we win.

When 'si' is in the middle, we don't need a comma.

#5 With Imperative

Si vous avez une question, parlez !

Focus: parlez

If you have a question, speak!

The result can be a command to give advice or directions.

#6 Formal usage

Si vous êtes prêt, nous commençons.

Focus: Si vous êtes

If you are ready, we begin.

Works perfectly in formal settings with 'vous'.

#7 Mistake corrected

✗ Si tu seras là → ✓ Si tu es là.

Focus: Si tu es

If you are there.

Never use the future tense (seras) after 'si'. Use the present (es).

#8 Mistake corrected

✗ S'elle est prête → ✓ Si elle est prête.

Focus: Si elle est

If she is ready.

Contract only for 'il', never for 'elle'.

#9 Negation

Si je ne comprends pas, j'utilise un dictionnaire.

Focus: ne comprends pas

If I don't understand, I use a dictionary.

Negation 'ne... pas' wraps around the verb as usual.

#10 Plural contraction

S'ils sont en retard, nous partons.

Focus: S'ils sont

If they are late, we are leaving.

'Si' also contracts before 'ils' (plural).

自分をテスト

Complete the sentence with the correct form of the verb 'avoir'.

Si tu ___ faim, mange un sandwich.

✓ 正解! ✗ おしい! 正解: as

After 'si', we use the present tense. For 'tu', the form of 'avoir' is 'as'.

Choose the correct contraction for the condition.

___ il pleut, je reste à la maison.

✓ 正解! ✗ おしい! 正解: S'il

'Si' always contracts to 's'il' before the word 'il'.

Choose the correct word to connect the ideas.

Je suis heureux ___ elle est ici.

✓ 正解! ✗ おしい! 正解: si

We use 'si' to express the condition 'if'. We do not contract 'si' before 'elle'.

🎉 スコア: /3

ビジュアル学習ツール

Si vs Quand

Si (If)
Incertain Uncertain
Si je gagne... If I win...
Quand (When)
Certain Certain
Quand je rentre... When I go home...

Should I contract 'Si'?

1

Is the next word 'il' or 'ils'?

YES ↓
NO
Keep it as 'Si' (e.g., Si elle, Si on)
2

Use 'S'il' or 'S'ils'

YES ↓
NO
Done

Real-World 'Si' Scenarios

🍷

Restaurant

  • Si c'est bon
  • S'il y a du vin
🗺️

Directions

  • Si je tourne
  • S'il est là
👋

Social

  • Si tu es libre
  • Si on sort

よくある質問

21 問

Mostly, yes. However, it can also mean 'so' (as in si bon) or be used to say 'yes' to a negative question.

Absolutely not! Contraction with si only happens with il or ils. Si elle must stay exactly as it is.

Only if the si clause comes first. If you put si in the middle of the sentence, you can skip the comma.

No, this is a major grammar rule. You must always use the present tense immediately after the word si.

Yes! It's great for giving advice. For example: Si tu es fatigué, dors ! (If you are tired, sleep!).

Nothing! You keep it as si on. Contraction is strictly reserved for il and ils.

It is neutral and used in every context, from casual chats with friends to formal business emails.

You use the plural contraction: s'ils veulent. Remember the s at the end of s'ils!

Yes! Je ne sais pas s'il vient can mean 'I don't know if he's coming' or 'I don't know whether he's coming'.

The most common mistake is using the future tense instead of the present right after si.

Yes, just keep the reflexive pronoun. For example: Si tu te lèves tôt... (If you get up early...).

Only when it becomes s'il or s'ils. Otherwise, it is an invariable word.

Yes, it's very common to start with the condition. Just remember the comma before the result!

Si is for uncertain possibilities, while quand is for things that are certain to happen.

Not at the A1 level. Expressing regrets usually requires more complex tenses like the pluperfect.

No, si itself doesn't change anything, but the subjects in your sentence still follow standard gender/number rules.

It's a short, sharp 'ee' sound. Think of the English word 'see' but shorter and more clipped.

Of course! Si tu es là (If you are there) is a very common way to start a sentence.

Use si for the first one and que for the second to avoid repetition: Si il pleut et qu'il fait froid....

Yes, to ask about possibilities: Si je viens, tu es content ? (If I come, are you happy?).

Yes! Si on peut, on y va (If we can, we're going) is a great conversational phrase.

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