YOU SAID:

I didn't do it! I've been at home all day!

INTO JAPANESE

それをしませんでした！私は一日中家にいました!

BACK INTO ENGLISH

Didn't do it! I stayed home all day!

INTO JAPANESE

それをしなかった!私は一日中家にいました!

BACK INTO ENGLISH

I didn't do it!

INTO JAPANESE

やらなかった

BACK INTO ENGLISH

I didn't do it!