Unit 1: Present Progressive and Simple Present Tense

Unit 3

Unit 2: Imperative

Unit 4

Unit 3: Simple Past Tense

Unit 5

Unit 4: Used to

Unit 6

Unit 5: Past Progressive and Simple Past Tense

Unit 7

Unit 6: Future

Unit 9

Unit 7: Future Time Clauses

Unit 10

Unit 8: Wh-Questions: Subject and Predicate

Unit 8

Unit 9: Reflexive and Reciprocal Pronouns

Not covered

Unit 10: Phrasal Verbs

Not covered

Unit 11: Ability: Can, Could, Be able to

Unit 27

Unit 12: Permission: May, Could, Can, Do you mind if…?

Unit 28

Unit 13: Requests: Will, Would, Could, Can, Would you mind…?

Unit 29

Unit 14: Advice: Should, Ought to, Had better

Unit 30

Unit 15: Suggestions: Let’s, Could, Why don’t…?, Why not…?, How about…?

Unit 31

Unit 16: Present Perfect: Since and For

Unit 11

Unit 17: Present Perfect: Already and Yet

Unit 12

Unit 18: Present Perfect: Indefinite Past

Unit 13

Unit 19: Present Perfect and Simple Past Tense

Unit 14

Unit 20: Present Perfect Progressive

Unit 15

Unit 21: Present Perfect and Present Perfect Progressive

Unit 16

Unit 22: Adjectives and Adverbs

Unit 17

Unit 23: Adjectives: Comparatives and Equatives

Unit 18

Unit 24: Adjectives: Superlatives

Unit 19

Unit 25: Adverbs: Equatives, Comparatives, Superlatives

Unit 20

Unit 26: Gerunds: Subject and Object

Unit 21

Unit 27: Gerunds after Prepositions

Unit 22

Unit 28: Infinitives after Certain Verbs

Unit 23

Unit 29: Infinitives of Purpose

Unit 24

Unit 30: Infinitives with Too and Enough

Unit 25

Unit 31: Gerunds and Infinitives

Unit 26

Unit 32: Preferences: Prefer, Would prefer, Would rather

Unit 32

Unit 33: Necessity: Have (got) to, Don’t have to, Must, Must not, Can’t

Unit 33

Unit 34: Expectations: Be supposed to

Unit 34

Unit 35: Future Possibility: May, Might, Could

Unit 35

Unit 36: Assumptions: Must, Have (got) to, May, Might, Could, Can’t

Unit 36

Unit 37: Nouns and Quantifiers

Unit 37

Unit 38: Articles: Indefinite and Definite

Unit 38