YOU SAID:

I have to go to class right now. Maybe we can get lunch afterwards?

INTO JAPANESE

私は今授業に行かなければなりません。後で昼食をとろうかな。

BACK INTO ENGLISH

I have to go to class now. Shall we have lunch later?

INTO JAPANESE

私は今授業に行かなければなりません。後で昼食にしましょうか。

BACK INTO ENGLISH

I have to go to class now. Shall we have lunch later?