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Present Perfect Tense - For and Since
How do we make the Present Perfect Tense?
How do we use the Present Perfect Tense?
subject + auxiliary verb + main verb
Have or Has + Subject + past participle

The Present Perfect Tense - How to form

We make the Present Perfect tense with the correct form of the auxiliary verb have (have/has) and the third form (past participle) of the main verb.

To form the past participle of the regular verbs, we add ed to the infinitive.

Examples:
I have worked as a secretary for two years.
Have you ever visited the Disneyland?
The film hasn't started yet.

Present Perfect - Positive Sentences
I 've been to Moscow.
You 've finished the exercise.
He 's just gone home.
She 's already had a holiday this year.
It 's broken!
We 've seen this film before.
They 've bought a new car.

Present Perfect - Negative Sentences
I haven't been abroad yet.
You haven't answered my question.
He hasn't been home for five years.
She hasn't found a _____ _____.
It hasn't finished yet.
We haven't worked on a farm.
They haven't seen each other for ages.

Present Perfect - Yes/No Questions

Have I ever done it before?
Have you been to the cinema recently?
Has he worked here long?
Has she already sent the fax?
Has it ever been in a crash?
Have we done it right?
Have they gone home yet?

Present Perfect - Information Questions

What have I done?
How long have you been here?
How many times has he been married?
What countries has she visited?
Where has it been?
How long have we been together?
Where have they worked?

The structure of the present perfect tense is:

subject	+	auxiliary verb	+	main verb
		have		past participle

Here are some examples of the present perfect tense:

	subject	auxiliary verb		main verb
+	I	have		seen	ET.
+	You	have		eaten	mine.
-	She	has	not	been	to Rome.
-	We	have	not	played	football.
?	Have	you		finished?
?	Have	they		done	it?

Contractions with the present perfect tense

When we use the present perfect tense in speaking, we usually contract the subject and auxiliary verb. We also sometimes do this when we write.

He's or he's??? Be careful! The 's contraction is used for the auxiliary verbs have and be. For example, "It's eaten" can mean:

It has eaten. [present perfect tense, active voice]
It is eaten. [present tense, passive voice]

It is usually clear from the context.

I have	I've
You have	You've
He has She has It has John has The car has	He's She's It's John's The car's
We have	We've
They have	They've

Here are some examples:

I've finished my work.
John's seen ET.
They've gone home.

Present Perfect Use »

Present Perfect Tense & Exercise
1. Form: to have (present tense)+ the past participle of the main verb.

Positive	-	-
Subject	to have	past participle
She	has	finished.
Negative	-	-
Subject	to have + not	past participle
She	hasn't	finished.
Interrogative positive	-	-
to have	subject	past participle
Has	she	finished...?
Interrogative negative	-	-
to have + not	subject	past participle
Hasn't	she	finished...?

Present Perfect Tense - For and Since

How do we make the Present Perfect Tense?
How do we use the Present Perfect Tense?

This tense is called the present perfect tense. There is always a connection with the past and with the present. There are basically three uses for the present perfect tense:

1. experience
2. change
3. continuing situation

1. Present perfect tense for experience

We often use the present perfect tense to talk about experience from the past. We are not interested in when you did something. We only want to know if you did it:

2. Present perfect tense for change

We also use the present perfect tense to talk about a change or new information:

3. Present perfect tense for continuing situation

We often use the present perfect tense to talk about a continuing situation. This is a state that started in the past and continues in the present (and will probably continue into the future). This is a state (not an action). We usually use for or since with this structure.

For & Since with Present Perfect Tense

We often use for and since with the present perfect tense.

We use for to talk about a period of time - 5 minutes, 2 weeks, 6 years.
We use since to talk about a point in past time - 9 o'clock, 1st January, Monday.

for	since
a period of time	a point in past time
	x------------
20 minutes	6.15pm
three days	Monday
6 months	January
4 years	1994
2 centuries	1800
a long time	I left school
ever	the beginning of time
etc	etc

Here are some examples:

I have been here for 20 minutes.
I have been here since 9 o'clock.
John hasn't called for 6 months.
John hasn't called since February.
He has worked in New York for a long time.
He has worked in New York since he left school.

For can be used with all tenses. Since is usually used with perfect tenses only.

Now check your understanding »

Present Perfect Tense Quiz

1 Lindsay ______ not been to France.
Option:
has
is
have
Answer:has

2 ______ you finished your homework?
Option:
Have
Has
Is
Answer:Have

3 They ______ gone to a rock concert.
Option:
's
've
'es
Answer:'ve

4 ______ you been to Japan?
Option:
Is
have
has
Answer:Have

5 We ______ never eaten Mexican food.
Option:
have
has
are
Answer:have

6 Andrea has ______ her umbrella.
Option:
forget
forgetting
forgotten
Answer:forgotten

7 ______ the sun come up?
Option:
Has
Was
Have
Answer:Has

8 The children ______ the lost puppy.
Option:
have found
have find
is finding
Answer:have found

9 How long have you ______ a vegetarian?
Option:
been
be
are
Answer:been

10 I have been here ______ 10 minutes.
Option:
since
for
by
Answer:for

Present Perfect Tense - For and Since

We use Present Perfect tense to talk about action which started in the past and continues up to the present.

Examples

I have had this computer for about a year.
How long have you been at this school?
I haven't seen Julia since September.

Tip! For other uses of the Present Perfect tense, see the Present Perfect Tense - When To Use.

We use for with a period of time, for example: a few days, half an hour, two years. We use since with the time when the action started, for example: last year, June 8, I met you.

1. Which is correct?
a) for a long period
b) since a long period
2. Which is correct?
a) for 6 years
b) since 6 years
3. Which is correct?
a) for 1992
b) since 1992
4. Which is correct?
a) for 6 weeks
b) since 6 weeks
5. Which is correct?
a) for 8 months
b) since 8 months
6. Which is correct?
a) for 10 minutes
b) since 10 minutes
7. Which is correct?
a) for a long time
b) since a long time
8. Which is correct?
a) for ages
b) since ages
9. Which is correct?
a) for March 18
b) since March 18
10. Which is correct?
a) for the end of last yea
r b) since the end of last year
11. Which is correct?
a) for I joined the firm
b) since I joined the firm
12. Which is correct?
a) for 10 hours
b) since 10 hours
13. Which is correct?
a) for 10 o' clock
b) since 10 o'clock
14. Which is correct?
a) for the beginning of the year
b) since the beginning of the year
15. Which is correct?
a) for a six month period
b) since a six month period

The Present Perfect Tense - Questions

Have or Has + Subject + past participle

Singular
Have I seen...
Have you seen...
Has he seen...
Has she seen...
Has it seen...

Plural
Have we seen...
Have you seen...
Have they seen...

In the example above, the verb "see" is in the present perfect tense. "Seen" is the past participle for the verb "see."

When you begin a question with "have" or "has," the answer is usually yes or no.

examples:

Have I ever met you?

(Answer: Yes, you have.)

Have you lived in the United States long?

(Answer: No, I haven't.)

Has he had any coffee yet this morning?

(Answer: No, he hasn't.)

Has she ridden a bike before?

(Answer: Yes, she has.)

Has the goat eaten anything yet today?

(Answer: No, it hasn't.)

Have we known each other for a long time?

(Answer: No, we haven't. We've known each other for a short time.)

I + you = we

Have you ever traveled to China?

(Answer: No, we haven't.)

Have they marched in this parade before?

(Answer: No, they haven't, but they have marched in other parades.)

Simple	Past	Past Participle
be	was/were	been
become	became	become
begin	began	begun
blow	blew	blown
break	broke	broken
build	built	built
buy	bought	bought
catch	caught	caught
come	came	come
cost	cost	cost
cut	cut	cut
do	did	done
drink	drank	drunk
drive	drove	driven
eat	ate	eaten
feel	felt	felt
find	found	found
fly	flew	flown
forget	forgot	forgotten
freeze	froze	frozen
get	got	gotten
give	gave	given
go	went	gone
have	had	had
hear	heard	heard
hit	hit	hit
hold	held	held
hurt	hurt	hurt
keep	kept	kept
know	knew	known
lay	laid	laid
lead	led	led
leave	left	left
lend	lent	lent
let	let	let
lie	lied	lied
lose	lost	lost
make	made	made
meet	met	met
pay	paid	paid
put	put	put
read	read	read
ride	rode	ridden
ring	rang	rung
run	ran	run
say	said	said
see	saw	seen
sell	sold	sold
send	sent	sent
show	showed	shown
sit	sat	sat
sleep	slept	slept
speak	spoke	spoken
spend	spent	spent
stand	stood	stood
swim	swam	swum
take	took	taken
teach	taught	taught
tell	told	told
think	thought	thought
throw	threw	thrown
understand	understood	understood
wear	wore	worn
win	won	won
write	wrote	written

Present Perfect Tense Chart
-	Subject	Auxiliary Verb	-	Main Verb	-
+	I	have	-	lived	in that house for 2 years.
	We	have	-	played	football for 2 years.
	She	has	-	played	outside for an hour.
-	I	have	not	lived	here for a long time.
	You	have	not	lived	with my parents for over 10 years.
	He	has	not	lived	here for many years.
?	Have	I	-	gotten	any mail today?
	Have	you	-	learned	English for a long time?
	Has	she	-	cleaned	the house for a long time?

Present Perfect - Questions

1. Have you ever been to Canada?
2. Has she ever seen the _____ of ______?
3. Has he ever ridden a horse?
4. Have you ever read ______?
5. Have they ever sung in public?
6. How many times have you been to Fiji?
7. Have you played the piano recently?
8.
9. Has he heard from Dean lately?
10. Has Greg had a holiday recently?

http://www.englishclub.com/grammar/verb-tenses_present-perfect_fs.htm

http://www.eclecticenglish.com/grammar/PresentPerfect1B.html

Present Perfect Tense - For and Since How do we make the Present Perfect Tense? How do we use the Present Perfect Tense? subject + auxiliary verb + main verb Have or Has + Subject + past participle

Contractions with the present perfect tense

For & Since with Present Perfect Tense

Present Perfect Tense - For and Since
How do we make the Present Perfect Tense?
How do we use the Present Perfect Tense?
subject + auxiliary verb + main verb
Have or Has + Subject + past participle