She had not really thought much about him for a long while.
Then she stood by the window thinking for a while.
He thought for a while, looking past me at the door.
They thought about this for quite a while until one of them finally made up his mind.
She thought for a while, looking down at her hands.
She thought for a while, but could not come up with anyone.
Maybe you'd just like to think about it for a while.
I don't want to think about it for a while.
He had to think about that one for a while.
We'll stand in front of it and think for a while.