I (meet) John at the airport tomorrow.
I'm meeting John at the airport
I (spend) Christmas with my parents next weekend.
I'm spending Christmas with my parents next weekend.
He (leave) tomorrow night.
He is leaving tomorrow night.
They (not/come) to my house.
They aren't coming to my house.
He (have) dinner with his girlfriend tonight.
He's having dinner with his girlfriend tonight.
They (play) soccer with their friends.
They are playing soccer with their friends.
My brother (go) to the dentist tomorrow.
My brother is going to the dentist tomorrow.
