The Tense Comparison Theory in Norwegian Grammar refers to the comparison of tenses in the Norwegian language. Norwegian has a unique tense system that distinguishes between two past tenses: the preterite and the perfect tense.

The preterite tense, also known as simple past, is used to describe completed actions in the past with a specific time frame. It is formed by adding the suffix -et or -te to the verb stem, depending on verb class. For example, “Jeg gikk til skolen” (I went to school).

On the other hand, the perfect tense, also known as present perfect, is used to describe actions that have happened in the past but have a relevance to the present. It is formed by using the auxiliary verb “har” or “er” combined with the past participle of the verb. For example, “Jeg har spist lunsj” (I have eaten lunch).

The Tense Comparison Theory helps learners of Norwegian understand the nuances between the preterite and perfect tenses. It emphasizes the time frame and relevance to the present when choosing the appropriate tense. Mastery of this theory is crucial for expressing oneself accurately and fluently in Norwegian.