She knew that ultimatum would urge Frank to his best endeavors.

What it says in the Bill is that the Government will use its best endeavours and that's not a guarantee.

That was the goal for 1989 but, despite our best endeavours, the contractor work force didn't believe it could be done.

Despite their best endeavors, the Gush could not make God's politics work in the real world.

Though I give you score-thought is not his best endeavor.

Despite their best endeavours, it is clear the impact on the landscape and local communities will be considerable.

You tell him we will use our best endeavours to get his wife and child out, but there's no guarantee.

I can assure you of our best endeavours in the critical days and hours that lie ahead.

He wanted a better grip on the girl's mind, but it refused his best endeavors.

Students will use their best endeavors to take lessons from the star teacher.