Articles
Definite (THE)
Count and noncount nouns
Singular and plural
Refer to something for the first time
Used with
Only one of something
Superlatives
Oceans, rivers, lakes
Chains of a business (hotels, theaters, museums)
No Article
Count and noncount
Singular and plural
Refer to things in general
Used with
Transportation
People's name
Countries, towns, streets
Routine places
Indefinite (A/AN)
Count nouns
Singular
Refer to something already known
Used with
Professions
Frequency
Quantifiers