The English language has several verb tenses linked to Present, As the simple present and the present continuous. Another of these times is present perfect, known in its original language as present perfect.
The present perfect is used to describe Actions that took place in the past although they are still relevant today. That is why it is often said that it is actually a combination of past and present.
It is important to mention that, in affirmative sentences, the present perfect form implies the use of the auxiliary verb to have on Present, accompanied by the past participle of the verb that indicates the action.
Many times the present perfect serves to describe a experience, without alluding to a particular act. For instance: “My sister has worked in different restaurants” (“My sister has worked in different restaurants”). As can be seen, the sentence does not name a specific action, but is associated with a series of practices or events.
This means that from a point in time not specified in this sentence to the present, the sender’s sister has acquired a certain degree of experience in the field of restoration. Why is the present perfect and not the simple present used in this case? Well, because said experience is relevant in the present, as you can take advantage of it in the future, in another company. If we simply wanted to indicate that in the past he worked in several restaurants, without establishing any link with the present, we could express it as follows: “For a while, she worked in several restaurants” (“For a time, he worked in various restaurants”).
Another possibility is to resort to the present perfect when a modification is registered with the passage of the weather: “He has become more quiet this year” (“He has become calmer this year.”). In this case, the person referred to has changed their attitude or temperament in recent months.
In this case the presence of the verb to become It is very useful: the dictionary defines it as “to become, to become, to become”, among other meanings, and gives the idea of a process that the subject goes through to go from one state to another. In the previous sentence, the attitude of the subject It starts from a relatively altered state to a calmer one. We use the present perfect to describe this change because it is not immediate, but it extends over a more or less extensive period, unlike the time it takes for light to invade a room since we activated the switch.
If we wanted to express that the subject changed his attitude drastically from one second to the next, we should use the past simple in a sentence like the following: «All of a sudden, he became more quite» (“Suddenly, he became calmer”). It would be a situation suspicious or unusual, typical of certain behavioral disorders that cause violent mood disorders.
The actions that were developed at different times of the last They can also be named through the present perfect: “I have been to Rome six times” (“I’ve been to Rome six times”).
Here we have another example of an action that accumulates a certain degree of experience in the life of the subject, similar to what happens with work. We could say that having traveled to a city is comparable to studying a career or experience in a company: modify the person’s history and they give you new tools that change you forever.
Even things that did not happen can be pointed out with this tense, usually by adding the adverbs still or yet: “The train has not arrived yet” (“The train has not arrived yet”).