YOU SAID:
I don't know what I should put into this translator.
INTO JAPANESE
私はこの翻訳者に何を入れるべきかわからない。
BACK INTO ENGLISH
I do not know what to put in this translator.
INTO JAPANESE
私はこの翻訳者に何を入れるべきかわかりません。
BACK INTO ENGLISH
I do not know what to put to this translator.
INTO JAPANESE
私はこの翻訳者に何を入れるべきかわかりません。
BACK INTO ENGLISH
I do not know what to put to this translator.
You've done this before, haven't you.