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Are Auxiliary Verbs and Modal Verbs the Same?

Sarah Jenkins • • 7 min read
Are Auxiliary Verbs and Modal Verbs the Same?

Main Difference – Modal vs Auxiliary Verbs
Modal verbs are a type of auxiliary verbs that indicate the modality. The main difference between modal verbs and auxiliary verbs is that modal verbs are not subject to inflection whereas auxiliary verbs change according to tense, case, voice, aspect, person, and number.

Is a modal verb an auxiliary verb?

What Are Modal Verbs? Modal verbs show possibility, intent, ability, or necessity. Because they're a type of auxiliary verb (helper verb), they're used together with the main verb of the sentence. Common examples include can, should, and must.

How do auxiliary and modal verbs function differently?

Modal verbs are different from other auxiliary verbs as they cannot stand alone in a sentence. They should always be followed by the base verb word (infinitive) like, play, work, run, and eat. Conjugated verbs such as: likes, played, working, ran and eats do not work with modal verbs.

Sarah Jenkins
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Sarah Jenkins

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.