Past Simple or Present Perfect

PAST SIMPLEPAST SIMPLEPRESENT PERFECT

SIMPLEPRESENT PERFECT

SIMPLE Completed actions that

took place in a finished period of time:

Carol bought a new dress yesterday.

A sequence of past actions:

He got up at eight o´clock, got dressed and had breakfast before leaving for work.

Unfinished actions: We´ve lived in Madrid for

2 years. (= we still live there)

Actions that have a present consequence:

I´ve cut my finger. Actions that took place at

no specific time: Have you ever seen any

of Pedro Almodovar´s films?

ACTIONS EXPRESSED BY PAST SIMPLE AND PRESENT

PERFECT

PAST SIMPLEPAST SIMPLE PRESENT PERFECT SIMPLEPRESENT PERFECT SIMPLE

Completed and finished periods of time.

yesterday last

week/month/year two weeks ago in 2005 when I was a boy when I met him

Periods of time that are not finished.

today tonight this week/month/

year this morning/

afternoon / evening

TIME EXPRESSIONS

Remember: “Go” has two “has gone” present perfect forms “has been”

Peter has gone shopping. = He didn´t come back.

Peter has been shopping. = He´s back now.

Remember: “Go” has two “has gone” present perfect forms “has been”

Peter has gone shopping. = He didn´t come back.

Peter has been shopping. = He´s back now.

FOR (preposition)

FOR (preposition)

SINCE (preposition or conjunction)

SINCE (preposition or conjunction)

We use “for” with periods of time to stress the duration of an action that started in the past and continues in the present.

We´ve had lessons for two months.

I´ve been a teacher for 20 years.

We use “for” with periods of time to stress the duration of an action that started in the past and continues in the present.

We´ve had lessons for two months.

I´ve been a teacher for 20 years.

We use “since” to mark the start of an action that began in the past and continues in the present.It can be a preposition:I´ve been a teacher since 1989.or a conjunction, followed by a clause (subject and verb):I´ve been a teacher since I left university.

We use “since” to mark the start of an action that began in the past and continues in the present.It can be a preposition:I´ve been a teacher since 1989.or a conjunction, followed by a clause (subject and verb):I´ve been a teacher since I left university.

FOR AND SINCE WITH PRESENT PERFECT

FOR AND SINCE WITH PRESENT PERFECT

JUSTJUST

“Just” is an adverb used with the present perfect to emphasize that the action expressed by the verb was completed very recently.I´ve just explained to you the difference between “for” and “since”. (some minutes ago)You´ve just read an example that shows the use of “just” with the present perfect simple. (30 seconds ago)“just” is placed before the past participle.

“Just” is an adverb used with the present perfect to emphasize that the action expressed by the verb was completed very recently.I´ve just explained to you the difference between “for” and “since”. (some minutes ago)You´ve just read an example that shows the use of “just” with the present perfect simple. (30 seconds ago)“just” is placed before the past participle.

ALREADY ALREADY

“Already” is used with positive and interrogative sentences to refer to an unspecified time before now.

Have you already done your homework?

Fina has already sent me her description of a friend.

Have you decided where to go already?

“Already” can be placed just before the past participle or at the end of the sentence.

“Already” is used with positive and interrogative sentences to refer to an unspecified time before now.

Have you already done your homework?

Fina has already sent me her description of a friend.

Have you decided where to go already?

“Already” can be placed just before the past participle or at the end of the sentence.

YET YET

“Yet” is used in negative and interrogative sentences to stress the time before now. It´s the opposite of “already”.

e.g. You haven´t studied the vocabulary yet. (before now) Has she come back from Dublin yet? (before now)“Yet” is placed at the end of the sentence.

“Yet” is used in negative and interrogative sentences to stress the time before now. It´s the opposite of “already”.

e.g. You haven´t studied the vocabulary yet. (before now) Has she come back from Dublin yet? (before now)“Yet” is placed at the end of the sentence.