Present Perfect Continuous Tense

Present Perfect Continuous Tense is used to express certain verbal action has been in progress between two certain points of time in immediate past.

Form of verb
Present Participle form is used in Present Perfect Tense. Since this form is used to indicate the verbal action in progress that’s why it is an appropriate form to be used in Perfect Continuous Tenses, which also indicate the continuity of verbal action.

  • Present Participle, 4th form (with all subjects)

Auxiliary
There are two auxiliaries (helping verbs) used in the Present Perfect Tense. With different subjects different auxiliaries are used. Details are as under.

  • Has been (with he, she, it and singular noun)
  • Have been (with I, you, they, we and plural noun)

Negative
When a sentence is converted into negative then not is used with the auxiliaries. You can use the short form too in which not is used with auxiliary as one word. Below are some examples to make you understand.

  • Has not been (hasn’t been in short)
  • Have not been (haven’t been in short)

Interrogative
While making interrogative the auxiliaries are used at the beginning of sentence.

  • Has / have used at the beginning of the sentence.

Examples of have been

  1. I have been working for the betterment of people. (Positive sentence)
  2. You have not been studying. (Negative sentence)
  3. Have they been playing? (Interrogative sentence)

Examples of has been

  1. He has been running. (Positive sentence)
  2. She has not been refusing to work. (Negative sentence)
  3. Has he been working out the problem? (Interrogative sentence)

Since and for
There are the words since and for used in the Perfect Continuous Tenses. Their detail is as under.

Since
It is used with the point of time. It means whenever you talk about the starting time of any verbal action you have to use since.

Examples

  1. He has been studying in this school since 2009.
  2. They have been working for this company since last summer.
  3. I have been feeling problem in my stomach since morning.
  4. I have not been sleeping since midnight.
  5. He has been enjoying reading this novel since last Friday.

For
For is always used with the duration of the verbal action.

Examples

  1. They have been watching the movie for two hours.
  2. He has been studying in this college for four years.
  3. You haven’t been doing your job properly for the whole week.
  4. They have been studying German for two months.
  5. He has been wondering for the whole night.