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Como valido?

How do I validate (it)?

Language note: Verb “validar” is regular (-ar). You can add object: “Como valido o bilhete/cartão?”

Culture note: Validation is important: inspectors do checks, and an unvalidated trip can lead to a fine.

Context: You ask specifically about validating before entering the metro.

Word-by-Word Breakdown

Como

[KOH-moo]

how

Introduces a question about the procedure.

Como valido o bilhete antes de entrar no metro?

How do I validate the ticket before entering the metro?

valido

[vah-LEE-doo]

do I validate; (I) validate

From “validar” (to validate). In metro systems you validate a ticket/card by tapping it on a reader before boarding/entering.

Como valido o cartão nas cancelas?

How do I validate the card at the gates?

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