YOU SAID:

my nose will fall of if my nose gets smelly

INTO JAPANESE

鼻が臭いなら鼻が落ちるだろう

BACK INTO ENGLISH

If your nose smells, your nose will fall off.

INTO JAPANESE

鼻のにおいがすると鼻が落ちるでしょう。

BACK INTO ENGLISH

If you smell your nose, your nose will fall off.

INTO JAPANESE

鼻のにおいがすると鼻が落ちるでしょう。

BACK INTO ENGLISH

If you smell your nose, your nose will fall off.