YOU SAID:

do you know that pigeons can't throw up?

INTO JAPANESE

ハトが吐けないことを知っていますか？

BACK INTO ENGLISH

Do you know that pigeons can't spit?

INTO JAPANESE

ハトが唾を吐くことができないことを知っていますか。

BACK INTO ENGLISH

Do you know that pigeons can't spit?