Contents: Expressing the Present: the Simple Present, the Present Continuous, and Stative Verbs -- Adverbs of Frequency, There Is and There Are, and Imperatives -- Expressing the Past Time: the Simple Past, Used to, and the Past Continuous -- Expressing Future Time: Be Going to, Will, the Present Continuous, and the Simple Present -- Connecting Sentences -- Complex Sentences: Past Time Clauses, Future Time Clauses, and Real IF Sentences -- Connecting the Past and the Present: The Present Perfect and the Present Perfect Continuous -- Social Modals: Requests, Permission, Suggestions, Advice, Opinions, Obligations, Necessity, Lack of Necessity, and Prohibition -- Modals of Ability and Belief; Past Modals -- Relative Clauses -- Count and Noncount Nouns -- Quantity Expressions and Articles -- Expressing Differences and Similarities: Comparatives, Superlatives, As...As, The Same...As -- Expressing Unreal Situations: WISH Sentences and Imaginary IF Sentences -- Gerunds and Infinitives -- The Past Perfect and the Past Perfect Continuous, Past WISH Sentences, and Past Imaginary IF Sentences -- Passive Sentences -- Noun Clauses and Reported Speech.