Some books, for whatever reason, simply happen to be thin.

What if things simply happen because they do, and then you pick yourself up, or not?

I wouldn't know anything about feeling maternal, it has simply never happened to me.

Well, maybe I simply happened to be the only human at a site that†they†wanted to seek out.

That was when he simply happened to be in Sweden.

What was to have happened simply is not always happening.

Events were simply happening too fast for the research to keep up with them.

Had he simply happened to be passing at the time?

She simply happened to be here when the drawing took place elsewhere.

"All this simply happened faster than any of us thought."