YOU SAID:

I don't drink often but when I do I don't

INTO JAPANESE

私は頻繁に飲まないが、飲むときは飲まない

BACK INTO ENGLISH

I don't drink often, but not when I drink

INTO JAPANESE

私は頻繁に飲まないが、飲むときは飲まない

BACK INTO ENGLISH

I don't drink often, but not when I drink