Sentence examples similar to if one from inspiring English sources

Replace lid on receptacle if one exists.

But what if one had?

"Imagine if one were God.

But what if one did?

But what if one controls for location?

What if one had answered my ad?

(As if one needed an invitation).

If one ever arrives.

What if one is animated?

If one emerges, that is.

If one doesn't work, try the other.