By now, you all must know the purpose of our story.

I do not even know the purpose of your organization.

And for the first time, he thought, I will know my purpose.

He knew the purpose of his company and how it fit into the business.

He knew the purpose and the message of the visit before anyone had a chance to speak.

The worst case was something whose purpose they did know.

I am the only person who knows the purpose of his messages.

"And do you know the purpose for which the food is intended?"

"It would like to know the purpose of our visit."

They don't know what we're doing or the purpose of the third fleet.