YOU SAID:

and i try hard to please her

INTO JAPANESE

そして私は彼女を喜ばせるために一生懸命努力します

BACK INTO ENGLISH

And I will do my best to please her

INTO JAPANESE

そして私は彼女を喜ばせるために最善を尽くします

BACK INTO ENGLISH

And I will do my best to please her