Come apart (Break, separate)
The cup just came apart in my hands.
Come around (Change one’s mind)
Give her time, and she may come around and see things your way.
Come away (Become separated from something)
The cakes have started to come away from the pan.
Come away (Distance oneself (from))
He goes to the park to come away from the hustle and bustle of the city.
Come at (Attack, to harass)
As I backed away, he came at me with a knife.