Sentence examples for it certainly do from inspiring English sources

Expensive problem projects, like the National Programmeramme for IT, certainly do not help create positive perceptions.

It certainly does.

It certainly did.

It certainly does now.

A. It certainly does.

It certainly did for us.

It certainly did on Pica.

It certainly does sound appalling.

"It certainly did," he said.

It certainly did for me.

Or, "It certainly does.