1.   Eventually, I realized the exercise was a complete waste of time.

2.   Firstly, this little episode exposes pre-nuptial contracts in this country to be the complete waste of paper they are.

3.   I came to the conclusion that therapy was a complete waste of time.

4.   In my opinion, any attempt to reconcile the statements of principle in Lawrence and Morris is a complete waste of time.

5.   It will either be a complete waste of time or you will find a real gem.

6.   She said it was a complete waste of paint.

7.   The meeting was a complete waste of time.

8.   The whole process was a complete waste of time.

9.   These meetings are a complete waste of time.

10.   This is a complete waste of time.