YOU SAID:

dog look like naked trees if they didn't not have the bark

INTO JAPANESE

彼らは樹皮を持っていなかった場合犬は裸の木のように見える

BACK INTO ENGLISH

Dogs look like a bare tree if they did not have bark

INTO JAPANESE

彼らが樹皮を持っていなかった場合犬は裸の木のように見えます

BACK INTO ENGLISH

Dogs look like a bare tree if they did not have bark