YOU SAID:

I’m always partying on Mondays with my friends.

INTO JAPANESE

私はいつも月曜日に友達とパーティーをしています。

BACK INTO ENGLISH

I always have a party with my friends on Mondays.

INTO JAPANESE

私はいつも月曜日に友達とパーティーをします。

BACK INTO ENGLISH

I always have a party with my friends on Mondays.