There are certain situations where the definite article "the" is used with proper nouns. These include plural names, names followed by a qualifying phrase like "of", and names with adjectives. The article is also used with bodies of water (except lakes), regions, mountain ranges (but not individual mountains), public institutions, theaters/hotels/galleries. In general, singular count nouns do not take articles in certain contexts like names of languages, sports, academic subjects, and idiomatic phrases with "be" and "go". The indefinite articles "a" and "an" depend on the sound, not the spelling, of the following word.

1. Determiners – other cases