Present Perfect Continuous Tense

Identification: when the work is going on but began in the past and there is indication of time. The time of the sentence is present.

1. I have been doing this work for 2 hours.
2. My friends have been coming to my house for weeks.

Helping verbs used: has been, have been

Affirmative: use of has been with he, she, it and singular noun; use of have been with plural noun, you and I:

1. I have been doing my work for many years.

2. She has been teaching in this school for many years.

Negative: use of has not been, have not been

1. I have not been doing my work since my injury.

2. She has not been teaching here since her marriage.

Interrogative: use of has or have at the beginning of the sentence

1. Have you been going to school for the last 2 months?

2. Has he been drinking coffee since the doctor advised him against it?

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