YOU SAID:

hello. I am suppose to be doing homework

INTO JAPANESE

こんにちは。宿題をしているのだろう

BACK INTO ENGLISH

Hello. You're doing your homework, are you?

INTO JAPANESE

こんにちは。宿題をやってるんですよね?

BACK INTO ENGLISH

Hello. You're doing your homework, aren't you?

INTO JAPANESE

こんにちは。宿題をやっているんですよね。

BACK INTO ENGLISH

Hello. You're doing your homework, aren't you?