YOU SAID:
I have to feed my pet frog tonight
INTO JAPANESE
私は今夜私のペットのカエルを養わなければならない
BACK INTO ENGLISH
I have to feed my pet frog tonight.
INTO JAPANESE
私は今夜ペットのカエルに餌をやらなければならない。
BACK INTO ENGLISH
I have to feed my pet frog tonight.
You've done this before, haven't you.