Threats are another form of verbal abuse.
Threats generally take on two forms:
If you (don't).....I'll....
If you don't leave me alone, I'll leave.
If you don't have these chores by the time I get home, I'll be really angry.
If you keep arguing with me, I'll hit you.
The second type takes this form:
Do this or I'll....
Do the dishes now or I'll make the dog sleep outside in the snow tonight.
Hang up the phone or I'll hurt you.
Do what I say or else.