I'm going to have to give the problem some serious thought.

At least he had given his first words some thought.

So I gave some serious thought to what was important to me.

I'll give some serious thought as to what I want to do with the rest of my life.

In over three years, I've never seen you give a man more than five minutes' thought.

At home I wouldn't have given him a second thought.

In fact, I have not given the matter a thought.

She had never even given them a second thought until he was gone.

In fact, he had given no thought to his future at all.

She gave no thought to what those men would do to her.