YOU SAID:

I just threw your mother a tea party

INTO JAPANESE

私はあなたのお母さんを投げました お茶会

BACK INTO ENGLISH

I threw your mom tea party

INTO JAPANESE

お母さんのお茶会をしました

BACK INTO ENGLISH

I had a tea party for my mom

INTO JAPANESE

お母さんのためにお茶会をしました

BACK INTO ENGLISH

I had a tea party for my mom