Completion count: 12
100 online multiple-choice and fill-in-the-blank present perfect continuous negative exercises across 5 tests provide a wide range of sentences to help you grasp the context and usage/formation of the present perfect continuous tense negative form. Prepare for exams, practice present perfect continuous tense negative form online and verify your answers immediately. Expand your English grammar proficiency with interactive present perfect progressive tense negative form (haven't/hasn't been -ing) activities. Suitable for kids, adults, ESL learners at the beginner, elementary, and intermediate levels.