YOU SAID:

I’m going back in a few weeks to see what I have on the calendar

INTO JAPANESE

私はカレンダーに何を持っているものを見るために数週間後に戻ります

BACK INTO ENGLISH

I'll be back in a few weeks to see what I have on the calendar

INTO JAPANESE

私はカレンダーに私が持っているものを見るために数週間後に戻ってきます

BACK INTO ENGLISH

I'll be back in a few weeks to see what I have on the calendar