Predictions and hopes:
It won't take long to get there.
I don't think I'll ever be famous.
You'll feel better soon.
I'm sure you'll enjoy it.
Spontaneous ideas:
I'll hold the door open for you.
I'll ask him.
I'll wash. You'll dry.
We'll help you!
Plans and arrangements:
I'm seeing Jenny on Sunday.
What are you doing next week?
Are you going to the cinema tomorrow night?
I'm playing basketball tonight.