Looking on the internet deeply has found these results:

This happened to be is the most popular phrase on the web.

This happened be 113,600 results on the web	This happened to be 116,200,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I talked it over with my familyand our minister, and we all agreedthat if this happened... it would be bestthat after the birth, I just go back home to ohio. You guys ever figure out how this happened, be sure and let me know. This one happened to be armed with two hellfire missiles. You know, if the wrong people found out what happened... this could be taken as a declaration of war. It was empty and cold, although this November happened to be warm. And that once this happened it would be impossible to put out the flame. This could be what happened for 9P/Tempel 1. If we understood how this happened, we might be able to find a new way to contain a warp core breach.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

This happened be

113,600 results on the web

This happened to be

116,200,000 results on the web

More popular!

I talked it over with my familyand our minister, and we all agreedthat if this happened... it would be bestthat after the birth, I just go back home to ohio.
You guys ever figure out how this happened, be sure and let me know.
This one happened to be armed with two hellfire missiles.
You know, if the wrong people found out what happened... this could be taken as a declaration of war.
It was empty and cold, although this November happened to be warm.
And that once this happened it would be impossible to put out the flame.
This could be what happened for 9P/Tempel 1.
If we understood how this happened, we might be able to find a new way to contain a warp core breach.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.