At least it hasn't been a complete waste of time.

And if he had, it would have been a complete waste of time.

Trying to work at home is a complete waste of time.

I found him to be a complete waste of Money.

School is a complete waste of time for anyone who does not want to be there.

I think that it is a complete waste of time and money.

Not as a friend, maybe, but he didn't think Richard was a complete waste of time.

That turned out to be a complete waste of time.

This job was clearly going to be a complete waste of her time.

It wasn't going to be a complete waste of time.