This is the 6801st most frequent Russian word.
xi
The Russian word "хи" does not carry any specific meaning; it might be a transliteration error or a part of a slang term. Could you clarify?
The word 'если' is used as a conjunction to introduce a conditional clause
Ты можешь сделать это, если захочешь.
You can do it if you want.
The word 'если бы' is used to introduce a hypothetical conditional clause in the subjunctive mood
Если бы я знала об этом раньше, я бы помогла.
If I had known about it earlier, I would have helped.
The word 'если' functions to introduce an indirect question regarding a conditional situation