YOU SAID:

Cats would kill a human if they were big enough.

INTO JAPANESE

猫が十分に大きかったら、人間を殺します。

BACK INTO ENGLISH

When cats are big enough, they kill humans.

INTO JAPANESE

猫が十分に大きくなると、人間を殺します。

BACK INTO ENGLISH

When cats get big enough, they kill humans.

INTO JAPANESE

猫は大きくなると人を殺します。

BACK INTO ENGLISH

Cats kill people when they grow up.

INTO JAPANESE

猫は大人になると人を殺します。

BACK INTO ENGLISH

Cats kill people when they grow up.