PAST SIMPLE/PAST CONTINUOUS (UNIT 1)
PRESENT PERFECT/PAST SIMPLE (UNIT 2)
SOME/ANY/TOO/ENOUGH/MUCH/MANY/A LOT OF (UNIT 3)
FUTURE TENSES (UNIT 4)
CONDITIONAL SENTENCES (UNIT 5)
MODAL VERBS (UNIT 6)
PASSIVE VOICE (UNIT 7)
RELATIVE CLAUSES (UNIT 8)