Updated on January 5, 2024
What are auxiliary verbs? A guide to these helpful English words
Auxiliary verbs help complete the meaning of the main verb. They are also known as helping verbs because they help the main verb. The main auxiliary verbs are to be, to have and to do. You probably learned these verbs at the beginning of your English studies.
This article will explain what auxiliary verbs are and give you plenty of examples so you can practice.
Auxiliary verbs help the main verb in a sentence and are also called helping verbs.
What is a main verb? A main verb is the important verb in the sentence and it shows the action or state of the subject.
“I” is the subject. Play is the verb. Play tells us what the subject “I” is doing.
Main verbs can be the only verb in a sentence. But, auxiliary verbs show up to help the main verb. When used to adjust a main verb, you will see two verbs in the same sentence. Auxiliary verbs are those that help the main verb so they need to stick together.
Auxiliary verbs in English help us write sentences in different tenses, moods or voices.
Ok, now which ones are they? The primary auxiliary verbs are be, do and have. These auxiliary verbs can also act as the main verb in a sentence if you see them alone.
| Primary Auxiliary Verbs | Their forms |
| To be | am, is, are, was, were, being, been, will be |
| To have | has, have, had, having, will have |
| To do | does, do, did, will do |
The modal auxiliary verbs are can, could, will, would, shall, should, may might, must and ought. These auxiliary verbs do not change their form.
Now that we have learned what auxiliary verbs do, let’s look at some examples.
Examples of auxiliary verbs expressing tense:
| Example | Tense |
| She was eating. | Past progressive |
| She is eating. | Present progressive |
| She will be eating later. | Future progressive |
| She had eaten the cake before we arrived. | Past perfect tense |
| She has eaten already. | Present perfect tense |
| She will have eaten by the time we arrive. | Future perfect tense |
When we use do as an auxiliary verb it is often in negative sentences.
Auxiliary verbs help us write passive sentences.
We can use auxiliary verbs to ask questions.
Do is the auxiliary verb and want is the main verb.
Did is the auxiliary verb and finish is the main verb.
Did is the auxiliary verb and eat is the main verb.
Let’s look at the other group of auxiliary verbs called the modal auxiliary verbs.
In this sentence be is the main verb and might is the auxiliary verb.
Auxiliary verbs are very important. If you are learning English and want to take your skills to the next level, auxiliary verbs can help you do this. These verbs will allow you to express yourself in English in many ways. Don’t be afraid of using auxiliary verbs, they are here to help you.
