Sentence examples for certainly has been from inspiring English sources

Strauss certainly has been.

There certainly has been progress.

Mine certainly has been.

A. There certainly has been an effect.

It certainly has been in the past.

The schedule certainly has been a plus.

"This certainly has been educational".

There certainly has been interest".

The fretting, certainly, has been vocal.

Well, it certainly has been toxic.

Certainly has been an interesting 24 hours!