No doubt whatever was going to happen would begin on time.

Doubt began to edge its sharp point into Mark's mind.

But as days went by, a certain doubt began to arise.

Confusion and doubt began to take over in her mind.

He could tell that doubts were beginning to wear her down.

He has not won a tour event since 1992, and doubt began to enter his mind.

Shortly after the party, the doubts began to set in.

The doubts he had brought with him coming in began to fade away.

In the hospital, he says, his doubts and anger about the war began to grow.

Yet even as doubt began to grow, I heard a small clicking sound.