PRESENT PERFECT "HAVE / HAS"
The present perfect is used to
talk about an experience, and if i want to give details of the experience, the
simple past will be used.
The "present
perfect" of any verb is composed of two elements: the appropriate form of
the auxiliary verb to have (in present) and the "past participle" of
the main verb. The form of the "past participle" of a regular verb is
root + ed, e.g. played, arrived, looked. As for the irregular verbs, consult
the Table of irregular verbs in the section 'Verbs'.
Afirmativa
|
||
Sujeto
|
to have
|
past participle
|
She
|
has
|
visited.
|
Negativa
|
||
Sujeto
|
to have + not
|
past participle
|
She
|
has not (hasn't)
|
visited.
|
Interrogativa
|
||
to have
|
sujeto
|
past participle
|
Has
|
she
|
visited?
|
Interrogativa
negativa
|
||
to have + not
|
sujeto
|
past participle
|
Hasn't
|
she
|
visited?
|
EXAMPLES OF "PRESENT PERFECT"
Afirmativa
|
Negativa
|
Interrogativa
|
I have
walked
|
I haven't walked
|
Have I walked?
|
You have
walked
|
You
haven't walked.
|
Have
you walked?
|
He, she, it has walked
|
He, she, hasn't walked
|
Has he, she, it walked?
|
We have
walked
|
We
haven't walked
|
Have we
walked?
|
You have
walked
|
You haven't walked
|
Have you walked?
|
They have
walked
|
They
haven't walked
|
Have
they walked?
|
EL "PRESENT PERFECT" SE
UTILIZA PARA DESCRIBIR
- Una
acción o situación iniciada en el pasado y que continúa en el presente. I have
lived in
Bristol since 1984 (= todavía vivo allí.)
- Una
acción realizada durante un periodo de tiempo aún no concluido. Shehas
beento
the cinema twice this week (= la semana todavía no ha
terminado.)
- Una
acción repetida en un periodo temporal inespecífico situado entre el
pasado y el presente. We have
visited Portugal
several times.
- Una
acción que ha concluido en un pasado muy reciente, lo que se indica
mediante 'just'. I have
just finished my
work.
- Una
acción para la cual no es importante el momento preciso en que aconteció. He has
read 'War
and Peace'. (= lo relevante es el resultado de la acción)
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