Relative clauses add extra information to a sentence by defining a noun. They are usually divided into two types – defining relative clauses and non-defining relative clauses.
When we report what people say, we usually change the tense of the verbs to reflect that we are reporting – not giving direct speech. This pattern is followed when we report questions.
When we report someone’s words we can do it in two ways. We can use direct speech with quotation marks (“I work in a bank”), or we can use reported speech (He said he worked in a bank.)
Remember that in reported speech we usually change the tense of the direct statement. The present simple tense changes to the past simple, the past simple changes to the past perfect and so on.
Some verbs are usually followed by prepositions before the object of the verb. these are called dependent prepositions and they are followed by a noun or a gerund (‘ing’ form).
When one verb is followed by another, the second verb can either be an infinitive or an –ing form. Some verbs can be followed by either an infinitive, or an –ing form but with a change in meaning.