How do I use caber in the preterit?

Question

Caber - to fit or be possible

I know the preterit conjugations (cupe, cupiste, cupo, cupimos, cupisteis and cupieron), but how do you use these in a sentence?

Does "El cupo" mean "It was possible" or "It fit"?

Would "Cupe" be a complete sentence meaning "I fit"? Would anyone ever say "Cupe"?

Answer 1

Of course. It is the only way to say:

I fit/fitted = (yo) cupe (in that small hole) ie.

You canoot say cabí, as that is not a word.