Lesson 1 - Greetings
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- Present perfect
- Past participles
- The words "for" and "since"
- "Find the Mistake" review activity
He has walked.
He has not walked.
Has he walked?
They have walked.
They have not walked.
Have they walked?
(Negative in red)
(Contractions in parenthesis)
The present perfect is used to describe an action that started in the past and continues in the present. It is formed with the verb "have" and the past partciple ("lived" in the example below).
I have lived in California for one year.
It can also be used to describe an action that happened at a non-specific time in the past (sometime in the past).
I have visited China.
In the example above I don't specify when. If I wanted to specify when, I would have to use the past tense.
I visited China last year.
Note: The verb "have" can only be contracted in the present perfect (when it functions as an auxiliary, or "helping", verb. We can't contract the verb "have" when it indicates possession (e.g. "I have a car.")
I've visited China.
I have a computer.
I've a computer.
The participle form of the verb is used with the present perfect form. The participle is usually formed by adding the letters -ed to the end of the verb (the same as the past tense). However, there are many irregular participle forms. Sometimes they are the same as the past tense form and sometimes they are different. The following table contains a list of some common irregular participle forms. I also included the past tense form for review. We will be studying irregular participle forms in some of the lessons in the advanced level just as we practiced with the past tense in the intermediate level.
In the spaces provided, use your imagination to write sentences using the irregular verbs from the table above. (Since there are so many possible answers, I can't correct this exercise. This is just for practice.)
go - went - gone
be - was/were - been
see - saw - seen
go - went - gone
meet - met - met
give - gave - given
buy - bought - bought
come - came - come
drink - drank - drunk
eat - ate - eaten
do - did - done
Make a sentence in the present perfect using the information provided. Add "have" or "has" and change the verb to the participle form. If the verb is not in the list of irregular verbs above, you can assume that it is regular (-ed in participle form). In the second text box write the same sentence in the contracted form. Sentences with "not" should be made negative (see the example below).
He - walk in the park
They - not go to France
1. She - work here for two years
2. I - finish my homework
3. They - meet many famous people
4. My parents - not see the movie
5. John - buy a new car
6. He - not eat dinner
7. Laura - not go to China
8. We - finish our work
9. The students - not go to school
10. You - not buy a new car
Change the sentences to questions.
He has studied in China.
The word "for" is used with periods of time.
I've lived here for two years.
She's worked at that company for seven months.
They've been here for 10 minutes.
The word "since" is used with the specific starting time of an activity.
I've lived here since 1998.
She's worked at that company since she moved to California.
They've been here since 8:30.
Select the word "for" or "since" in each sentence.
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