This happens about 1 to 2 times out of 100.

It happens about every three months when I last looked.

This happens about 20 percent of the time, she said.

Such problems might happen about 10 to 20 times out of 100.

You wanted to know if anything unusual happened about the time old John was killed.

So I did, and nothing happened for about two or three weeks.

What happened to the discussion about good and bad art?

But something happened to him in about 1950 that pretty much closed this off.

Jesus, I thought, it must have happened just about the same time the guy here was after me.

Something like this happens to me just about every week.