Consider the following:

1. “Used to” expresses the idea of customary or habitual action in the past;
2. “Be to” is used to indicate plans, obligation, necessity or arrangements;
3. “Must” expresses unavoidable obligation or necessity;
4. “Will” and “be going to” can always be used interchangeably.

All the groups of words below show homophones, except:

All the suffixes below are used to form abstract nouns, except:

These are all true statements, except:

One of the following sentences is incorrect in meaning. Which one?

One of the verbs below cannot be followed by an “ing form”. Which one?

All the words below can be used as adjectives or adverbs, except:

The only right form to complete the sentence “Let’s go, ______?” is:

Which one of the alternatives below is not correct?

The suffix -ness is added to adjectives in order to form:

The suffix -ly is added to adjectives to form:

Which statement below is not correct?

Which one of the following groups of correlative conjunctions is not used together?