I will do it at all costs.

My father achieved that and more in four words, which made quoting Shakespeare as effective as any business adviser could wish.

He carried on at his work eventually.

Though he is young, he is equal to the task.

He got through with his work.

He completed his work at the expense of his health.

He did the work on his own.

He is the only person that I known who is equal to the task.

He accomplished the work as planned.

He accomplishes whatever he sets out to do.

He finally accomplished the work.

He finally went through with his plan to go to Thailand.

He had to call on all his experience to carry out the plan.

Well begun is half done.

I will carry through the work.

I've accomplished my task.

You must carry the task through to the end.

We didn't help him, so he did it off his own bat.

Whatever you do, carry it through.

We'll finish it if it takes us all day.