Present Perfect Simple and Present Perfect Continuous

PRESENT PERFECT SIMPLE
have/has + past participle (-ed or the 3rd column)
We use the present perfect simple tense to talk about things where there is a connection between the past and the present.
He has written 16 books.
PRESENT PERFECT CONTINUOUS/PROGRESSIVE
have/has + been + the verb in gerund (...ing)
We use the present perfect continuous when the focus is on an activity that is unfinished. Very often we can ask the question "how long".
She has been writing emails for three hours.
If you want to learn more about the differences between these two tenses, have a look at this website.
Exercise 1
Exercise 2
Exercise 3
have/has + past participle (-ed or the 3rd column)
We use the present perfect simple tense to talk about things where there is a connection between the past and the present.
He has written 16 books.
PRESENT PERFECT CONTINUOUS/PROGRESSIVE
have/has + been + the verb in gerund (...ing)
We use the present perfect continuous when the focus is on an activity that is unfinished. Very often we can ask the question "how long".
She has been writing emails for three hours.
If you want to learn more about the differences between these two tenses, have a look at this website.
Exercise 1
Exercise 2
Exercise 3