The clerk frowned, and Whandall went over to his brother.

The clerk suddenly frowned.

The clerk frowned over them, shaking his head.

The clerk frowned.

But when I walked up to the ticket booth and asked for "The Triad Zone," the clerk frowned and looked worried.

The clerk frowned, "I think so .... " he said slowly.

The manager and the attractive clerk behind the desk frowned.

The clerk frowned at me.

The clerk frowned at him.

Suppose- The clerk was frowning.