It seemed to take a considerable effort to do so.

The old man must have made considerable effort just to get there.

He opened his eyes, as if that action took considerable effort.

With considerable effort, Tom tried to keep his face from showing what he felt.

I therefore feel that we need to make a considerable effort in this area.

Many applicants found no work after a year, despite considerable effort.

With considerable effort, we sent them back to your vessel.

And someone had made a considerable effort to eliminate them.

He has made considerable effort in writing this beautiful coffee table book.

We have made considerable efforts this year to get the truth understood.