Article modifies the noun. There are two articles in English language “the” and “a/an”.
Rules. 1. “The” is used for singular and plural nouns but the noun has to be specific.
Example– The door is still open.
2. “An” is used with singular noun beginning with a vowel (a, e, I, o, u).
Example– He returned after an hour.
3. “A” is used with singular noun beginning with a consonant.
Example– she was a good writer.
Takeaway– Two articles in English language “the” is used with singular and plural nouns and it has to be specific, “an” is used with singular nouns that begin with vowels and “a” is used with singular noun which begins with a consonant.
1.she is mischievous girl in the class. (a, an, the)
2.Gold is precious metal. (a, an, the)
3.He was honest man. (a, an, the)