YOU SAID:

I'm going to eat a cookie in an hour

INTO JAPANESE

私は 1 時間でクッキーを食べるつもり

BACK INTO ENGLISH

I'm going to eat cookies at one time

INTO JAPANESE

私はクッキーを一度に食べるつもり

BACK INTO ENGLISH

I'm going to eat cookies at a time

INTO JAPANESE

私は一度にクッキーを食べるつもり

BACK INTO ENGLISH

I'm going to eat the cookies at a time

INTO JAPANESE

私は一度にクッキーを食べるつもり

BACK INTO ENGLISH

I'm going to eat the cookies at a time