Sentence examples for either there from inspiring English sources

It's either there or it isn't.

You were either there or you weren't.

"It's either there or it's not," said one miner.

A lot had to do with amenities, which are either there or not".

"You know for a paper document, it's either there or it isn't," he said.

They're either there for drinks and dinner or they're there for a meeting.

So, for example, there's very little concept of gradualness: light is either there, or it's not.

If and either there exists an such that (3.4).

(b) If and either there exists an such that (3.4)  .

You are either there for it or you can read about it later.

I don't understand this... we are either there for each other or not surely?