YOU SAID:

You had kuso with ya mum today, didn't you?

INTO JAPANESE

今日はお母さんと一緒にクソを持っていましたね。

BACK INTO ENGLISH

You had a with your mother today, didn't you?

INTO JAPANESE

今日はお母さんと一緒にいましたね。

BACK INTO ENGLISH

You were with your mother today.

INTO JAPANESE

今日は母親と一緒でしたね。

BACK INTO ENGLISH

I was with my mother today.

INTO JAPANESE

今日は母と一緒でした。

BACK INTO ENGLISH

I was with my mother today.