A certain tension had come into the tall man's frame.

She saw something strange in his movements, a certain tension.

I was conscious at once of a certain tension in the atmosphere.

Through the stretcher, I felt a certain tension go out of him.

A certain tension faded from them; for the first time, they weren't afraid of her.

She turned, then, a certain tension coming into her frame.

Finally she was gone, and a certain tension left the bridge.

In my opinion we should do both, even if there is a certain tension between the two.

"It does add a certain tension to the environment that shouldn't have been there."

"I think there's a certain tension in me they must have felt," he acknowledged.