Skill 30: Use Past Participles After Have and Had
Choose the past participle after auxiliary have, has, or had in perfect tenses.
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Skill 29: Use the “The More …, the More …” Structure
Learn how paired comparatives express a relationship between two changing situations.
Skill 28: Use Comparatives and Superlatives Correctly
Choose a comparative for two things and a superlative for one member of a group.
Skill 27: Form Comparatives and Superlatives Correctly
Learn to form and use comparative and superlative adjectives correctly.
Skill 26: Parallel Structure with Comparisons
Learn to make logical, parallel comparisons in TOEFL grammar questions.
Skill 25: Parallel Structure with Paired Conjunctions
Learn how to use paired conjunctions with balanced grammar.
Skill 24: Parallel Structure with Coordinate Conjunctions
Learn to use and, but, and or with balanced grammar.