The Present Perfect Simple

We use the Present Perfect Simple to talk about actions that happened and finished in the past, but we don’t say when. If we mention the time, or our reader / listener already knows the time, we should use the Past Simple instead.

We often use "ever" in questions when we're talking about life experiences. "Ever" comes before the past participle.

We can also use "never" before the past participle to say that the verb has not happened at any time in a person’s life.

"Never" makes the sentence negative, so we don’t put "not" after the auxiliary verb when we use "never". (I haven't never ridden a horse.)

We also use the Present Perfect Simple to talk about recent events when we don’t mention a specific time.

There are two types of verbs in English:

Regular verbs are verbs that follow the usual Past Simple and past participle pattern by adding "-ed" to the base form. For example, "walk" becomes "walked" in both the Past Simple tense and the past participle form.

Irregular verbs are verbs that do not follow the usual Past Simple pattern (-ed). Their forms change in both the Past Simple tense and the past participle (e.g., eat, ate, eaten). The Past Simple and past participle forms of these verbs should be memorized.

Let's take a look at the different forms of the Present Perfect Simple for the regular verb "work".

Now, let's take a look at the different forms of the Present Perfect Simple for the irregular verb "eat".

In the Present Perfect Simple tense, we use the auxiliary verb "have" or "has" to form negative sentences and questions.

We need to memorize the past and past participle forms of irregular verbs. A good dictionary is the best place to check them. Below is a list of the most common irregular verbs in English.