Welcome to Focus on Grammar v
The Focus on Grammar Unit viii
Scope and Sequence xiv
About the Authors xxvi
Acknowledgments xxvii
Reviewers xxviii
Credits xxix

PART 1 Present and Past 2
UNIT 1 Present Progressive and Simple Present 4
UNIT 2 Simple Past 18
UNIT 3 Past Progressive and Simple Past 33
UNIT 4 Used to and Would 47
UNIT 5 Wh- Questions 61

PART 2 The Future 72
UNIT 6 Future 74
UNIT 7 Future Time Clauses 91

PART 3 Present Perfect 102
UNIT 8 Present Perfect: Since and For 104
UNIT 9 Present Perfect: Already, Yet, and Still 118
UNIT 10 Present Perfect: Indefinite Past 129
UNIT 11 Present Perfect and Simple Past 144
UNIT 12 Present Perfect Progressive and Present Perfect 157

PART 4 Modals and Similar Expressions 172
UNIT 13 Ability: Can, Could, Be able to 174
UNIT 14 Permission: Can, Could, May, Do you mind if 189
UNIT 15 Requests: Can, Could, Will, Would, Would you mind 202
UNIT 16 Advice: Should, Ought to, Had better 214

PART 5 Nouns, Quantifiers, and Articles 228
UNIT 17 Nouns and Quantifiers 230
UNIT 18 Articles: Indefinite and Definite 243

PART 6 Adjectives and Adverbs 258
UNIT 19 Adjectives and Adverbs 260
UNIT 20 Adjectives: Comparisons with As . . . as and Than 276
UNIT 21 Adjectives: Superlatives 290
UNIT 22 Adverbs: As . . . as, Comparatives, Superlatives 302

PART 7 Gerunds and Infinitives 316
UNIT 23 Gerunds: Subject and Object 318
UNIT 24 Infinitives after Certain Verbs 330
UNIT 25 More Uses of Infinitives 342
UNIT 26 Gerunds and Infinitives 355

PART 8 Pronouns and Phrasal Verbs 368
UNIT 27 Reflexive and Reciprocal Pronouns 370
UNIT 28 Phrasal Verbs 384

PART 9 More Modals and Similar Expressions 396
UNIT 29 Necessity: Have (got) to, Must, Can’t 398
UNIT 30 Expectations: Be supposed to 414
UNIT 31 Future Possibility: May, Might, Could 427
UNIT 32 Present Conclusions: Must, Have (got) to, May, Might, Could, Can’t 438

Appendices 453
Glossary of Grammar Terms 469
Unit Review Answer Key 475
Information Gaps, Student B 485
Index 489