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 ...

For example, in WH-questions in which the beginning WH-word represents an OBJECT, a sentence can reflect an OVSV word order: What (O) have (V) the students (S) done (V)? In a sentence that begins with ...

A suffix is a letter or group of letters that goes on the end of a word and changes its meaning. Adding the suffix -ing to the end of a noun can change it into a verb. When you are writing ...