Mike happened to have been absent from school.

Had his character been known, this could not have happened.

What happened to him might not have been a heart attack.

If it happened, it happened. We've been printing all night...

Have you ever been so difficult, or has it happened over time?

Disasters have happened.

If he had been careful then, the terrible accident would not have happened.

It's been 780,000 years since this happened.

Something's happened. There has been an accident.

Oh, it's finally happened. I've been outwitted.

That wouldn't have happened if we hadn't been doing TEDx events in our community.

It has will have going to have happen, happened but it hasn't actually... happened, happened yet, actually.

Something may have happened.

What's happened? Has he been in an accident?

She's not sure that would have happened if the editor had not been a female.

This was really embarrassing when it happened, until I realized it could have been worse.

Seung Jo, thank you so much. If you hadn't been there, what would have happened?

Picture what would have happened if this navigation system had been used for commercial airlines.

So three things have happened.

All these things have happened.

The other possibility that might have happened is that nothing happened.

What policy prescriptions have happened that actually cause changes to occur and that have been accepted in a bipartisan way?

Something may have happened to him.

Something might have happened to her.

Strange things have happened around here.

What happened? I have to know.

What could have happened to him?

None of this would have happened.

Something must have happened to them.

I have to know what happened.

If they'd sent a nuke, it would have been rather more spectacular than what actually happened last Monday.

In his own reported words, he was convinced at first that what had happened couldn't have been real.

Do you have any idea what may have happened?

I wonder what would've happened? and that thought even now when I say it really gives me the creeps because it would've been horrible to not have been published and have been my fault.

I have some idea of what happened.

She happened to have the day off.

Something must have happened to Bob yesterday.

Something happened last night. I'm going crazy. I saw things that couldn't have happened.

The consequences would have been extremely serious for Italy, had a default of Greece happened a few months ago.

Well, I happened to have been very quick that day, and I said, Yeah, but a lot less baloney.

It happened after I had been in America for a few months.

She was in a bad mood she must have been put off by something that had happened before I arrived.

And as that's happened, people have been leaving behind footprints, footprints that tell stories of their moments of self expression.

Never before in human history have so many people been raised out of such great poverty as happened in China.

But what happened for me is that that shattering actually emboldened me in a way I have never been emboldened.