YOU SAID:

i'd have to go to this morning when we had donuts

INTO JAPANESE

ドーナツを食べた今朝に行かなくちゃいけないのに

BACK INTO ENGLISH

I have to go this morning after eating a donut.

INTO JAPANESE

今朝はドーナツを食べて行かなくちゃ。

BACK INTO ENGLISH

I have to go eat a donut this morning.

INTO JAPANESE

今朝はドーナツを食べに行かなくちゃ。

BACK INTO ENGLISH

I have to go eat donuts this morning.

INTO JAPANESE

今朝はドーナツを食べに行かなくちゃ。

BACK INTO ENGLISH

I have to go eat donuts this morning.