You have to if you're going to be together for any length of time.

She was the only woman I'd been with for any length of time.

You really don't want to be around me for any length of time.

What had kept them away for such a length of time?

So much held alone for the length of a morning.

However they may not run for the whole length of the line.

He found it difficult to hold to a thought for any length of time.

The problem would come if they stopped for any length of time.

"But not all people want to hear that go on for any length of time."

That she did not believe could be held for any length of time.