A thought formed in his mind, he knew not how.

That was when the thought she had been avoiding slowly formed in her head.

Several new thoughts were forming in his mind, but he had no one to share them with.

Before the thought had fully formed in his mind, he watched it play out.

As they turned for the second time, Molly's thoughts formed themselves into a question.

Neither had I, and a very scary thought was forming.

But no thoughts would form in his mind and take definite shape.

And, at the same instant, a thought formed in his brain.

But even as the thoughts formed in her mind, she rejected them.

Even as the thought formed in her mind she realized that it wasn't true.