Questions & Answers about Ell està segur?
Yes. Catalan often drops subject pronouns because the verb ending already tells you the person and number.
So both of these are possible:
- Està segur?
- Ell està segur?
Including ell usually adds emphasis, contrast, or extra clarity, as in Is he sure? rather than someone else.
Because Catalan normally uses estar with segur when it means sure/certain.
- estar segur = to be sure / to be certain
So:
- Ell està segur? = asking about his certainty
Using ser here would not be the normal way to say that someone feels certain about something.