Sure, I can help you with articles.

In English, there are two types of articles: definite (the) and indefinite (a, an). Here are some general rules for using articles:

Definite article "the":
Used before singular and plural nouns when the speaker and listener both know which specific thing or things the speaker is referring to.
Example: The teacher is in the classroom.

Used before superlative adjectives and ordinal numbers.
Example: She is the smartest student in the class.

Used before specific nouns that have been mentioned before.
Example: I saw a cat. The cat was gray.

Indefinite articles "a" and "an":
"A" is used before singular nouns that begin with a consonant sound.
Example: She has a dog."An" is used before singular nouns that begin with a vowel sound.
Example: He has an umbrella.

It's important to remember that articles are used to specify or identify nouns in a sentence. If you have any specific sentences or examples you're unsure about, feel free to ask!