YOU SAID:

This dog is wet under the rain

INTO JAPANESE

この犬が雨で濡れてください。

BACK INTO ENGLISH

This dog is sure wet in the rain.

INTO JAPANESE

この犬は確かに雨に濡れています。

BACK INTO ENGLISH

This dog is certainly wet rain.

INTO JAPANESE

この犬は、確かに濡れた雨です。

BACK INTO ENGLISH

This dog is certainly wet rain.