Hyphens are the short lines that separate the words in expressions like ex-husband and make-up.

Two-part adjectives in which the second part ends in –ed or –ing are often separated by hyphens.

Not only…but also has a similar meaning to as well as. In this structure not only and but also go immediately before the words or expressions that they modify.

Many nouns have both countable and uncountable uses. There is usually a difference of meaning.

Correct the following sentences.

Incorrect: The news are too good to be true.
Correct: The news is too good to be true.

We can use words like much, many, little and few with degree modifiers like too, so, as, very, rather and how. Note that very much and very many are mostly used in questions and negatives.

Prepositions are not normally followed by infinitives in English. Instead we use the –ing form of the following verb.

Some is a determiner. It suggests and indefinite quantity or number.

I need to buy some clothes.

Some is used when it is not necessary to say exactly how much or many we are thinking of.