| 1 | It's waste of time to wait any longer. | |
| 2 | A wrong approach means a waste of effort. | |
| 3 | I see I am speaking in vain to a hardened heart. | |
| 4 | Have an aim in life,or you energies will all be wasted. | |
| 5 | All efforts to reconcile her with her husband were in vain. |
