The document discusses the present perfect continuous tense in English grammar. It is used to talk about activities that started in the past and are still ongoing. The tense is formed using "have/has been" plus the present participle of the verb. Examples are provided of using time expressions like "since" and "for" with the tense. Common hobbies are also listed and exercises provided for learners to practice forming sentences in the present perfect continuous tense about duration of activities.
The document discusses the present perfect continuous tense in English grammar. It is used to talk about activities that started in the past and are still ongoing. The tense is formed using "have/has been" plus the present participle of the verb. Examples are provided of using time expressions like "since" and "for" with the tense. Common hobbies are also listed and exercises provided for learners to practice forming sentences in the present perfect continuous tense about duration of activities.