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 They have been talking for the last hour.
 She has been working at that company for three years.
 What have you been doing for the last 30 minutes?
 James has been teaching at the university since June.
 We have been waiting here for over two hours!
 Why has Nancy not been taking her medicine for the last three days?

USE 2 Recently, Lately

You can also use the present perfect continuous WITHOUT a duration such as "for two weeks."
Without the duration, the tense has a more general meaning of "lately." We often use the words
"lately" or "recently" to emphasize this meaning.

Examples:

 Recently, I have been feeling really tired.
 She has been watching too much television lately.
 Have you been exercising lately?

The past perfect continuous (also called past perfect progressive) is a verb tense which is used to
show that an action started in the past and continued up to another point in the past. Read on
for detailed descriptions, examples, and present perfect continuous exercises.

Past Perfect Continuous Forms

The past perfect continuous is formed using had + been + present participle. Questions are
indicated by inverting the subject and had. Negatives are made with not

 Statement: You had been waiting there for more than two hours when she finally arrived.
 Question: Had you been waiting there for more than two hours when she finally arrived?
 Negative: You had not been waiting there for more than two hours when she finally
arrived.

Past Perfect Continuous Uses: