"PRESENT PERFECT CONTINUOUS"

1. Structure of the Present Perfect Continuous Tense

2. Positive

2.1. Subject + have/has + been + present participle + the rest of the sentence

2.1.1. Examples

2.1.1.1. I have been working on this project for a week.

3. Negative

3.1. Subject + have/has + not + been + present participle + the rest of the sentence

3.1.1. Examples

3.1.1.1. I have not been working on this project for a week.

4. Interrogative

4.1. Have/has + subject + been + present participle + the rest of the sentence

4.1.1. Examples

4.1.1.1. Have you been working on this project for a week?

5. Negative Interrogative

5.1. Have/has + subject + not + been + present participle + the rest of the sentence

5.1.1. Examples

5.1.1.1. Haven’t you been working on this project for a week?

6. THE END !

7. What that mean ?

7.1. The present perfect continuous is used to refer to an unspecified time between 'before now' and 'now'. The speaker is thinking about something that started but perhaps did not finish in that period of time.

8. Usage

8.1. The present perfect continuous tense is employed in a sentence to indicate an action that started in the recent past and is still continuing in the present.

9. Formula and Structure

9.1. Subject + have/has + been + present participle (verb+ing) + the rest of the sentence