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80 online multiple-choice and fill-in-the-blank past perfect continuous question exercises across 4 tests provide a wide range of sentences to help you grasp the context and usage/formation of the past perfect continuous tense question form. Prepare for exams, practice past perfect continuous tense question form online and verify your answers immediately. Expand your English grammar proficiency with interactive past perfect progressive tense interrogative form activities. Suitable for kids, adults, ESL learners at the beginner, elementary, and intermediate levels.