This turbulent ruler was a very go-ahead monarch indeed. He organised a splendid army, well-drilled and well-equipped with modern arms.
You can start as soon as you get the go-ahead from the president.
The pitcher gave up the go-ahead run in the top of the ninth inning.
... It comes in from a user, we'll go ahead and ...
... issued the evacuation order about 32 hours ahead of the ...