The tense system Present, past and future Simple and continuous Perfect and non-perfect Active and passive.--Present perfect simple and continuous Relating past actions and activities to the present.--Gerunds After certain verbs After prepositions As subject Infinitves After certain verbs and adjectives.--Question forms Subjetc/object questions Short questions Who to? Indirect questions Tag questions Questions + preposition.--Narrative tenses Past simple and continuos Past perfect simple and continuous.--Expressing quantity Mass and cont nouns Compousnds with some and any Few versus a few Mucj and many.--Future time Will and going to Present continuous and simple Future continuous and simple Future continuous Future perfect May, might, could.--Descripction Relative clauses Present and past participles Modifying adverbs.--Modal verbs of deduction Expressing degrees of certainty about the presente and past Must, might, may, could, can t.--Expressing present and continuous with Used to + infinitive (Compared with used to + noun/gerund).--Hypothesis should have done wish tird conditional.--Articles