Tag questions / Passive constructions / Verbs followed by infinitive or gerund /    Requirement, permission and prohibition / Past perfect and past perfect continuous / Defining relative clauses / Indefinite pronouns / Future real conditional and present unreal conditional / Separable and inseparable phrasal verbs / Passive causatives and reflexive pronouns / Nondefining relative clauses / Past real conditional and I wishif only /  Verb + infinitive, verb + gerund and preposition + gerund / Past modals for deduction