When talking about doing things with a friend, put the ‘with my friend’ after the action.


I with my friend went to the swimming pool.I went to the swimming pool with my friend.
He with his friends will go to Korea.He will go to Korea with his friends.

My friend and I

If talking you and another person are both subjects, you do not need to use with.
In these cases you use the ‘x and I’ structure.

I with he ate all the food.He and I ate all the food.
I with my friend are going to Mexico next year.My friend and I are going to Mexico next year.