Possessive का/की/के (of, 's)

Because maa (mother) is feminine. Even if you are a boy, your mother is female, so the possessive matches her gender: meri.

Nope! Not for choosing ka, ke, or ki. The owner affects the *start* of the sentence, but the possessive particle is loyal only to the object.

This is the hardest part of Hindi! Generally, words ending in 'aa' are masculine (ladka) and 'ee' are feminine (ladki). For others, you just have to learn them.

Yes, if the object is implied. If someone asks "Whose phone is this?", you can say "Rahul ka" (Rahul's). We know you mean the phone.

Ka is for possession (Rahul's). Ko is for direction or receiving action (To Rahul). Don't mix them up!

First, 'My friend' becomes Mere dost (oblique). Then add ka ghar. So: Mere dost ka ghar. (We used 'Mere' because 'ka' follows it!).

It sounds like it should be feminine (ends in 'i'), but paani is actually Masculine! So it is Ganga ka paani.

They get assigned a gender! 'Bus' and 'Train' are usually feminine (ki). 'Phone' and 'Computer' are usually masculine (ka).

Hindi flips it: "Room's door". Kamre ka darwaza. Note that Kamra became Kamre because of ka.

Good catch! When a masculine singular noun (Kamra) is followed by a postposition (ka), it changes to its Oblique form (Kamre).

Mostly, but it also indicates respect. Gandhi ji ke vichaar (Gandhi ji's thoughts). Also, used for singular oblique objects.

Yes! Ki is for feminine singular AND plural. Ladki ki (Girl's) and Ladkiyon ki (Girls') both use ki.

The particle matches the closest one. Rahul ka bhai aur behen (Rahul's brother and sister). Rahul ki behen aur bhai.

It can be both! If the friend is a boy, use ka. If the friend is a girl, use ki. Meri dost (my female friend).

You can use ka. Delhi ka ladka (A boy from Delhi). Mumbai ki baarish (Mumbai's rain).

Ke is the plural form. Mera joote (Wrong) -> Mere joote (Correct).

Flip it: Sky's color. Aasmaan ka rang.

No, it depends on the person! But the name itself doesn't change the particle; the object does. Sita ka bhai (Sita is female, but bhai is male, so Ka).

No. The words ka, ke, and ki are written as separate full words. No punctuation tricks here.

Close! It's a short, crisp 'u' sound like in 'cup', but with the 'aa' of 'father'. Kaa.

People will understand you, but you'll sound a bit funny. Like saying "He car" instead of "His car".