In Spanish, the infinitive is the base form of a verb, equivalent to the English "to do" (to speak, to eat, to live). Spanish infinitives always end in one of three endings: -ar, -er, or -ir.
Infinitives can function as nouns, and they are used after modal verbs like poder (can), querer (want), or deber (should), and after prepositions. Learning the infinitive form of verbs is the first step to Spanish verb conjugation.
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Table of Contents
- Uses and Structure
Spanish infinitives are the basic, unconjugated forms of verbs ending in -ar, -er, or -ir, used to express general actions, create compound tenses, and more.
Last updated: Wed Jun 18, 2025
