YOU SAID:
I'm going to have to have lunch with a lot of friends tomorrow
INTO JAPANESE
明日はたくさんの友達とランチを食べなければならない
BACK INTO ENGLISH
I have to eat lunch with many friends tomorrow.
INTO JAPANESE
明日はたくさんの友達とランチを食べなければなりません。
BACK INTO ENGLISH
I have to eat lunch with many friends tomorrow.
You've done this before, haven't you.