Atualizado: 15 de jun. de 2020
Texto escrito por Jill Campanella-Dysart
The present perfect tense is used to describe things that happened in the past that are still true in the present.
The present perfect uses the helping verb “have” or “has”. Be sure to conjugate both correctly:
The conjugation of the main verb of the present perfect happens with the 3rd form, that might end with -ed (for regular verbs). Many present perfect verbs have their own conjugation, often ending in -EN (irregular verbs). For example:
Tara has forgotten Greg’s birthday.
Sometimes the present perfect is confused with the past simple. Sometimes they can be used in the same way.
I ate lunch
I have eaten lunch.
These two mean the same thing and can be used in the same way.
We bought a house.
We have bought a house.
They mean the same thing, but “have bought” confirms that the house you bought is still your house in the present.
“Just” can be added to emphasise how recent the activity was.
They have just seen the film.
To make the present perfect negative, “not” goes in the middle, between the helping and the main verb
He has not finished dinner.