Firmar means 'to sign', and it is a regular -ar verb useful in formal, work and travel contexts. Firma aquí, por favor (sign here, please), firmé el contrato (I signed the contract). Because signing documents comes up in role-plays about jobs, banking and official situations, firmar is a practical verb to know, especially at A-Level. The related noun la firma means both 'signature' and 'firm/company'. As a regular -ar verb the conjugation is predictable, so the verb is simply a matter of recognising when a signature is involved.
Quick facts
Firmar (to sign) is a regular -ar verb.
Real sentences across different tenses — the kind of thing you'd actually say or write.
Firma aquí (sign here).
Firmé el contrato (I signed the contract).
Useful in jobs and banking role-plays.
La firma (signature / firm).
Fixed expressions worth knowing — they come up in listening, reading and writing tasks.
Idiomatic expressions
Firmar is a regular verb. Make sure you know the endings for each tense — especially the preterite and subjunctive, which is where marks are most often lost.
firmar is a regular -ar verb — it follows the standard -ar pattern in every tense. That makes it a good one to drill: if you know firmar, you know the template for all regular -ar verbs.
Type conjugations from memory and get instant feedback. That's how you actually build the automatic recall the exam needs — not from reading tables.
Practice firmar now →Three questions. Press Enter to check each answer.
yo: firmo, tú: firmas, él: firma, nosotros: firmamos, vosotros: firmáis, ellos: firman
Firmar is a regular -ar verb following the standard -ar pattern.
Use firmar in multiple tenses to show range — present, preterite and future at minimum. This is a key criterion for higher GCSE marks.
Verbs that are easy to confuse with firmar or that behave like it.
This reference is written for UK GCSE and A-Level Spanish learners and their teachers. It is designed for exam revision: every form is checked against standard conjugation rules, and the examples reflect the registers and topics that come up in the AQA, Edexcel and Eduqas specifications. Firmar is a high-frequency verb and appears often in exam papers. For active recall, use the free practice tool rather than only reading the tables.