A, an, and the are special adjectives. These are called Articles.
When articles combine with nouns, they form noun phrases: There are two articles in English
| Types | Words | Examples |
|---|---|---|
| The Indefinite article | A or An | A king, an elephant |
| The Definite Article | The | Call the man |
1. ‘A’ / ‘An’ means one. So we can use ‘a’ / ‘an’ only with singular countable nouns.
2. An is not used wth plural nouns or proper nouns.
3. ‘A’ / ‘An’ cannot be used with uncountable nouns.
For example, We cannot say : a milk, a water, a tea, a sugar, a rice.
‘The’ can be used with all nouns (singular or plural).
Non-defining relative clause
Non-defining relative clauses are placed after nouns which are definite already.
The adjective clause which does not define the noun before it but gives additional information about the noun is called the non-defining relative clause.