I need time to think things over, do some more work.
I'll need a little more time to think things over.
Had he come here to think things over, or just to be alone?
Then she went to her room to think things over.
There was more evidence, too, once I started to think things over.
We decided to take a break and think things over.
He would have a long fall in which to think things over.
He decided to take a short walk to think things over.
I thought that several days away from you would give me time to think things over.
So I'm going for a walk and think things over.