Grammar Reference

Determiners

Articles: a, an, the

A is the indefinite article. It is used with single countable nouns.

Use a before consonant sounds. Use an before vowel sounds.

The is the definite article. It is used when there is only one of something.

This includes superlative adjectives.

It is used when it is clear which thing the speaker refers to.

It is used when something has already been identified.