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The present perfect continuous tense

I. The formation of the Present Perfect Continuous Tense

The Present Perfect Continuous is formed by means of the Present Perfect of the auxiliary verb to be and Participle I of the notional verb. Participle I is formed by adding the suffix -ing to the stem of the verb.

In the interrogative form the first auxiliary verb is placed before the subject.

In the negative form the negative particle not is placed after the first auxiliary verb.

Affirmative

Negative

I have been working

I have not been working

You have been working

You have not been working

He/she/it has been working

He/she/it has not been working

We have been working

We have not been working

They have been working

They have not been working

Interrogative

Have I been working?

Have you been working?

Has he/she/it been working?

Have we been working?

Have they been working?

II. The contracted affirmative forms are:

I’ve been working

He’s been working

You’ve been working

The contracted negative forms are:

I haven’t been working

He hasn’t been working

You’ve been working

The negative-interrogative forms are:

Has he not been working?

Hasn’t he been working?

Have you not been working?

Haven’t you been working?

III.The use of the Present Perfect Continuous

1. We use the Present Perfect Continuous for action that started in the past and is still happening. Usually if the action started a few minutes or hours ago, we use the Present Perfect Continuous, and if it has been happening for longer, we can use either the simple or continuous form.

I have been studying for three hours.

(I started studying three hours ago and I am still studying.)

They have been living in Paris for three years.

(They have lived in Paris for three years, and are still there.)

2. We use the Present Perfect Continuous when we talk about an action (quite a long action) which began in the past and has recently stopped or just stopped.

You are out of breath. Have you been running?

That man over there is bright red. I think he’s been sunbathing.

3. We often use the Present Perfect Continuous with verbs like learn, lie (on the bed), live, rest, sleep, sit, stand, stay, which describe states of being rather than actions.

Alex has been sleeping for hours.

4. We can also use the continuous form when we want to emphasize how long something has been happening.

I’ve been learning Italian for six years and I still can’t speak it properly!

Sorry I’m late. Have you been waiting long?

Sometimes the action is a repeated action.

Tom has been driving for ten years.

How long have you been smoking?

The continuous or simple form can be used for actions repeated over a long period.

I’ve been collecting / I’ve collected stamps since I was a child.

5. We use the Present Perfect Continuous for actions that have just finished, often when we can see the result.

The road is wet; it has been raining.

6. For actions that are temporary, unusual or continue for some time.

I have been staying with Aunt Olga this week as my mother is in Paris.

7. Remember that some verbs are not usually used in the continuous form. So instead of the Present Perfect Continuous, they are usually used in the Present Perfect.

I’ve been sitting here in the park for an hour, and I’ve met two friends of mine.

(Not; I’ve been meeting.)

Tom and I have known each other since we were at school.

8. The Present Perfect Continuous is used with for, since and How long…? to say how long something has been happening.

-How long have you been waiting for me?

-I’ve bee waiting for you since 8 o’clock / for two hours.

We use since when we say the beginning of the period (8 o’clock).

We use for when we say the period of time (two hours).

THE PAST PERFECT TENSE

I. The formation of the Past Perfect Tense.

The Past Perfect is formed by means of the Past Indefinite of the auxiliary verb to have and Participle II of the notional verb.

In the interrogative form the auxiliary verb is placed before the subject.

In the negative form the negative particle not is placed after the auxiliary verb.

Affirmative

Interrogative

Negative

I had worked

Had I worked?

I had not worked

You had worked

Had you worked?

You had not worked

He/she/it had worked

Had he/she/it worked?

He/she/it had worked

We had worked

Had we worked?

We had not worked

They had worked

Had they worked?

They had not worked

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