PRESENT PERFECT vs SIMPLE PAST.

1) Use (from Englishpage.com)

Present Perfect	Simple Past
Result of an action in the past is important in the present	action finished in the past
Recently completed actions	series of completed actions in the past
Actions beginning in the past and still continuing	together with the Past Progressive/Continuous - The Simple Past interrupted an action which was in progress in the past.
together with lately, recently, yet

2) Signal words

Present Perfect	Simple Past
just, yet, never, already, ever, so far, up to now, recently, since, for	yesterday, last week, a month ago, in 2002

3) Form

Present Perfect	Simple Past
have/has + past participle	regular verbs: infinitive + ed irregular verbs: 2nd column of the table of the irregular verbs

4) Examples

Present Perfect	Simple Past
4-1 Affirmative sentences
I have played football. I've played football.	I played football.
You have played football. You've played football.	You played football.
He has played football. He's played football.	He played football.

Present Perfect	Simple Past
4-2 Negative sentences
I have not played football. I've not played football. I haven't played football.	I did not play football. I didn't play football.
You have not played football. You've not played football. You haven't played football.	You did not play football. You didn't play football.
He has not played football. He's not played football. He hasn't played football.	He did not play football. He didn't play football.

Present Perfect	Simple Past
4-3 Questions
Have I played football?	Did I play football?
Have you played football?	Did you play football?
Has he played football?	Did he play football?

5) Spelling (both tenses)

stopped (Double the consonant after a short vowel.)

loved (one -e at the end of the word -> Leave out the -e and add -d.)

worried (consonant before -y ->Change to -ie.)  EXERCISE ONE EXERCISE TWO EXERCISE THREE

PRESENT PERFECT

Present Perfect by www.englishpage.com

FORM

[has/have + past participle]

Examples:

• You have seen that movie many times.
• Have you seen that movie many times?
• You have not seen that movie many times.

Complete List of Present Perfect Forms

USE 1 Unspecified Time Before Now

We use the Present Perfect to say that an action happened at an unspecified time before now. The exact time is not important. You CANNOT use the Present Perfect with specific time expressions such as: yesterday, one year ago, last week, when I was a child, when I lived in Japan, at that moment, that day, one day, etc. We CAN use the Present Perfect with unspecific expressions such as: ever, never, once, many times, several times, before, so far, already, yet, etc.

Examples:

• I have seen that movie twenty times.
• I think I have met him once before.
• There have been many earthquakes in California.
• People have traveled to the Moon.
• People have not traveled to Mars.
• Have you read the book yet?
• Nobody has ever climbed that mountain.
• A: Has there ever been a war in the United States?
  B: Yes, there has been a war in the United States.

How Do You Actually Use the Present Perfect?

The concept of "unspecified time" can be very confusing to English learners. It is best to associate Present Perfect with the following topics:

TOPIC 1 Experience

You can use the Present Perfect to describe your experience. It is like saying, "I have the experience of..." You can also use this tense to say that you have never had a certain experience. The Present Perfect is NOT used to describe a specific event.

Examples:

• I have been to France. This sentence means that you have had the experience of being in France. Maybe you have been there once, or several times.
• I have been to France three times. You can add the number of times at the end of the sentence.
• I have never been to France. This sentence means that you have not had the experience of going to France.
• I think I have seen that movie before.
• He has never traveled by train.
• Joan has studied two foreign languages.
• A: Have you ever met him?
  B: No, I have not met him.

TOPIC 2 Change Over Time

We often use the Present Perfect to talk about change that has happened over a period of time.

Examples:

• You have grown since the last time I saw you.
• The government has become more interested in arts education.
• Japanese has become one of the most popular courses at the university since the Asian studies program was established.
• My English has really improved since I moved to Australia.

TOPIC 3 Accomplishments

We often use the Present Perfect to list the accomplishments of individuals and humanity. You cannot mention a specific time.

Examples:

• Man has walked on the Moon.
• Our son has learned how to read.
• Doctors have cured many deadly diseases.
• Scientists have split the atom.

TOPIC 4 An Uncompleted Action You Are Expecting

We often use the Present Perfect to say that an action which we expected has not happened. Using the Present Perfect suggests that we are still waiting for the action to happen.

Examples:

• James has not finished his homework yet.
• Susan hasn't mastered Japanese, but she can communicate.
• Bill has still not arrived.
• The rain hasn't stopped.

EXERCISE ONE
EXERCISE TWO
EXERCISE THREE

WORKBOOK ANSWERS

PERSONALITY ADJECTIVES

CLICK ON THE LINKS, DO THE ON-LINE EXERCISES AND CHECK THEM:
 
EXERCISE ONE
EXERCISE TWO
EXERCISE THREE