YOU SAID:

dont gift a horse in the mouth

INTO JAPANESE

口の中で馬を贈ってはいけません

BACK INTO ENGLISH

Don't give a horse in your mouth

INTO JAPANESE

口の中に馬を入れないでください

BACK INTO ENGLISH

Do not put a horse in your mouth

INTO JAPANESE

馬を口に入れないでください

BACK INTO ENGLISH

Do not put the horse in your mouth

INTO JAPANESE

馬を口に入れないでください

BACK INTO ENGLISH

Do not put the horse in your mouth