He could push the door open a couple of inches.
He didn't miss by more than a couple of inches.
He reached down and opened the door a couple of inches.
The water was a couple of inches below where it had been.
Once past the first couple of wet inches, the ground was quite easy to move.
"Just move your hand a couple of inches and put it down again."
"It was just a couple of inches away from going in."
There were already a couple of inches on the streets.
When we first sat down, there were a couple of inches between us.
We only have a couple of inches up here right now.