Guide - Tenses & Moods

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The Infinitive

Quick Tips


Infinitives end in -ar, -er and -ir and are 'action' words such as to walk (andar), to eat (comer) and to sleep (dormir).

Use the infinitive after a conjugated verb e.g. quiero comer.


What is it?

The Infinitive is a verb that is not inflected, i.e. it is in its 'resting state', similar to the English words that follow the word to e.g. to cook, to cry and to walk.



How is it used?

  • As a noun (in masculine form) e.g. leer es bueno (reading is good).
  • Following a conjugated verb e.g. voy a comer un huevo (I'm going to eat an egg).
  • Used idiomatically using que and de e.g. tengo mucho que hacer esta maƱana (I have a lot to do this morning).


How are regular verbs conjugated?

Infinitive forms of verbs are not subjected to conjugation, they are in their purest form so the -ar, -er or -ir endings stay in place.

Ending Verb Conjugation
-ar cantar cantar
-er comer comer
-ir sentir sentir


Anything else I should know?

Nope, that's it.


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