Asking why: porquê and porque

Two Spellings, One Rule

You just learned porque = because. The SAME word asks why — the spelling depends on where it stands.

Porquê — with the circumflex — is why standing ALONE or at the END of the sentence:

Are you tired? Why?
Estás cansado? Porquê?
You are not drinking the wine? Why?
Não bebes o vinho? Porquê?

Porque — no accent — opens a full why-question, and in Portugal it almost always brings é que along:

Why do you study Portuguese? — Because my family lives in Lisbon.
Porque é que estudas português? — Porque a minha família mora em Lisboa.
Why are you not eating the fish? — Because I do not like fish.
Porque é que não comes o peixe? — Porque não gosto de peixe.
Why does the museum not open today?
Porque é que o museu não abre hoje?

The Rule of Thumb

Nothing after it → porquê. Something after it → porque. And the answer to both is porque + a reason — question and answer often mirror each other word-for-word, as above.

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