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Verbs are known as ‘doing’ or ‘action’ words. A verb tells us that someone or something is doing an activity, even if the activity is not very obvious.

Verbs are the most essential parts of a speech (sentence); not only do they describe an action, they show when the action takes place and give an indication as to who performed the action.

Since doing words show different times they take place, verbs have tenses (times): The present (now); the past and the future.

These tenses imply that a verb such as talk can be in different tenses (forms) as in, I talk (present), I talked (past) and I will talk (future).

Meanwhile, for verbs to have different tenses (forms), there is the need for each of them to have a basic form from which its tenses will be derived. This is what we call the Infinitive and it is the version of a verb which will appear in the dictionary.

In English, the infinitive form of a verb is usually preceded by the word ‘to’. So verbs are mostly mentioned with the word ‘to’ said before them.

Most verbs usually follow a pattern of adding -ed to past tense and past participle (used with an auxiliary verb)

However, there are some verbs that do not conform to the usual. They are called irregular verbs and they fall into several categories.

One category concerns those which have the same form in past tense and past participle as the infinitive and do not end in -ed like regular verbs. These include:

Some irregular verbs have two past tenses and two past participles which are the same, as in:

Some irregular verbs have past tenses that do not end in -ed and have the same form as the past participle. These include:

Some irregular verbs have regular past tense forms but two possible past participles, one being regular. These include:

Some irregular verbs have past tenses and past participles that are different from each other and different from the infinitive. They include: