Learn how to form and use the passive voice in the most common English tenses.

Learn to describe nouns with adjective clauses.

Choose the past participle after auxiliary have, has, or had in perfect tenses.

Learn how paired comparatives express a relationship between two changing situations.

Choose a comparative for two things and a superlative for one member of a group.

Learn to form and use comparative and superlative adjectives correctly.

Learn to make logical, parallel comparisons in TOEFL grammar questions.

Learn how to use paired conjunctions with balanced grammar.

Learn to use and, but, and or with balanced grammar.