present perfect continuous tense form of the verbs in the bracket sentence
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Explanation:
Forming Present Perfect Continuous Tense
I have been waiting for the train. Subject + haven't / hasn't + been + verb(ing)... I haven't been waiting for the train. Have / has + subject + been + verb(ing)...?
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Explanation:
The Present Perfect Continuous uses two auxiliary verbs together with a main verb.
In this lesson we look at the structure and use of the Present Perfect Continuous tense, as well as the use of for and since, followed by a quiz to check your understanding.
Note that continuous tenses are also called progressive tenses. So the Present Perfect Continuous tense is sometimes called the Present Perfect Progressive tense.
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