YOU SAID:

I wish I didn't have so many pillows to stuff

INTO JAPANESE

ものにたくさんの枕を持っていなかったなあ

BACK INTO ENGLISH

I didn't have a lot of pillows to.

INTO JAPANESE

枕の多くがなかった。

BACK INTO ENGLISH

Many of the pillows did not.

INTO JAPANESE

枕の多くはしませんでした。

BACK INTO ENGLISH

I did not do a lot of pillows.

INTO JAPANESE

私はたくさんの枕をやらなかった。

BACK INTO ENGLISH

I did not do a lot of pillows.