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2061 online multiple-choice and fill-in-the-blank infinitive exercises across 101 tests provide a wide range of sentences to help you grasp the context and usage/formation of the infinitive verbs. Prepare for exams, practice infinitive verbs online and verify your answers immediately. Expand your English grammar proficiency with interactive infinitive verbs activities. Suitable for kids, adults, ESL learners at the beginner, elementary, and intermediate levels.