A: How long have you been studying in the control tower?
B: I started in January, so I've been here for two months.
Present Perfect Continuous
have or has + been + verb ~ing
Positive & Negative Sentences
| I You We They |
have have not / haven't |
been | writing waiting wearing |
Airspace procedures for many years. here for a long time. headsets since ATC Academy. |
| He She It |
has has not / hasn't |
Questions
| Have | I You We They |
been | writing waiting wearing |
Airspace procedures for many years? here for a long time? headsets since ATC Academy? |
| Has | He She It |
Use
How Long?
Another way to use the Present Perfect is to describe actions or situations that started in the past but are not finished. When we do this, we are often describing an action's duration: how long it has been happening. English speakers usually do this in the Present Perfect Continuous tense:
- Mary has been working here since she was 22.
- They have been studying ATC procedures for two months.
- I have been learning to vector aircraft for a while.
Simple or Continuous?
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