In addition, some of these verbs need an object, usually a person or people. The police warned us not to enter the building. The speaker invited the audience to ask questions. The best way to learn ...

When a verb is followed by another verb, the second verb must be either an infinitive with 'to' such as 'to do', 'to make', 'to go' etc. or an -ing form such as 'doing', 'making', 'going'. In this ...