YOU SAID:

valentinas face dropped when the puppy licked the oil

INTO JAPANESE

子犬が油をなめたときにバレンタインの顔が落ちた

BACK INTO ENGLISH

Valentine's face fell when the puppy licked the oil

INTO JAPANESE

子犬が油をなめたとき、バレンタインの顔が落ちました

BACK INTO ENGLISH

Valentine's face fell when the puppy licked the oil