YOU SAID:

My dad is smoking my weed

INTO JAPANESE

私の父は私の雑草を喫煙します。

BACK INTO ENGLISH

My father smoked my weed.

INTO JAPANESE

私の父は、私の雑草を吸っていました。

BACK INTO ENGLISH

My father has smoked my weed.

INTO JAPANESE

私の父は私の雑草を吸っています。

BACK INTO ENGLISH

My father has smoked my weed.