The Articles Theory in Swedish Grammar refers to the rules and usage of definite and indefinite articles in the Swedish language. Like many other languages, Swedish has both definite and indefinite articles that are used to specify the noun they accompany.

The definite article in Swedish is “den” for common gender nouns, “det” for neuter gender nouns, and “de” for plural nouns. The definite article is used to indicate that the noun is specific or known to the speaker and the listener.

The indefinite article in Swedish is “en” for common gender nouns and “ett” for neuter gender nouns. The indefinite article is used to indicate that the noun is non-specific or unknown to the speaker and the listener.

Additionally, Swedish also has a special form of definite article known as “bestimmad form” which is used to indicate possession or ownership. It is formed by adding an “-s” to the noun.

Understanding and correctly using the definite and indefinite articles is crucial in mastering Swedish grammar as it helps to determine the gender and number of nouns, as well as the level of specificity.