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 episode of The Flatmates, the police ...

Adding the suffix -ing to the end of a noun can change it into a verb. When you are writing, the verbs you use show whether something has already happened, is happening now or will happen in the ...