YOU SAID:

I've been to college today to smoke a cigarrette

INTO JAPANESE

私は今日、シガレットを吸うために大学に行ったことがある

BACK INTO ENGLISH

I went to college to smoke cigarettes today.

INTO JAPANESE

今日はタバコを吸うために大学に行きました。

BACK INTO ENGLISH

I went to college to smoke today.

INTO JAPANESE

今日は大学にタバコを吸いに行った。

BACK INTO ENGLISH

I went to college to smoke today.