Past perfect continuous form exercises

To make the past perfect continuous tense we use the auxiliary verb had been and the main verb plus -ing ending. When writing, you should mind the correct spelling of a gerund. In negations, we add “not” after “had”: had not been doing. In questions, “had” and the subject swap places: had + subject + been + doing. The exercises on this page will enable you to practise the formation of affirmative, negative and interrogative sentences in the past perfect continuous tense. They are essential for the further study of this verb tense.