results of the action. It is possible to insult someone by using this tense incorrectly.

Important: Non-Continuous Verbs / Mixed Verbs

T: It is important to remember that Non-Continuous Verbs cannot be used in any continuous tenses. Also, certain non-continuous meanings for Mixed Verbs cannot be used in continuous tenses. To express the idea of Present Perfect Continuous with these exception verbs, you must use Present Perfect. Here are some examples.

Show the following.

Sam has been having his car for two years. (Not Correct)

Sam has had his car for two years. (Correct)

Active / Passive Present Perfect Continuous

Examples:

Recently, John has been doing the work. (Active)

Recently, work has been being done by John. (Passive)

Note: Present Perfect Continuous is rarely used in its passive form.

Step Ⅳ Consolidation

Show these exercises on the screen.

1. Hi, Tracy, you look tired.

I'm tired. I ____ in the living room all day.

A. painted B. had painted

C. have been painting D. have painted

2. There is so much snow these days, isn't there?

Yes, it ____ for a few days.

A. was snowing B. has been snowing

C. had been snowing D. snowed

3. Although these scientists ____ on the project for nearly four years, I don't know how long it will last.

A. have been working B. had worked

C. were working D. are working

4. Now that she is out of job, Lucy ____ going back to school, but she hasn't decided yet.

A. had considered B. has been considering

C. considered D. is going to consider

5. The little boy is dirty from head to foot because he ____in the mud all morning.

A. has played B. is playing

C. has been playing D. was playing

Key: 1. C 2. B 3. A 4. B 5.C

Step Ⅴ Practice

Ask the students to work in pairs, and take turns to read the statement and turn it into a question using the present perfect continuous tense.

1. S1: Sam has just finished learning to fly an airplane on six-month course. (How long)

S2: How long have you been learning to fly an airplane, Sam?

2. S1: He swam till he felt very tired. He has just stepped out of the swimming pool. (How along)