An overview of the Norwegian verbal system.
The Norwegian verbal system is generally simpler than that of many other European languages. The verbs do not agree in gender or number with the subjects, so Norwegian verbs are uniform within a tense. If you know the verb ending for one subject in Norwegian, you know the ending for all subjects.
The Norwegian and English verbal systems are very similar, except from the fact that Norwegian does not have a common continuous form. (It does exist, but you don’t have to use it) Consequently you only have to deal with one present tense form, one past tense etc.
The rules for when to use past tense and when to use present perfect tense are almost identical in English and Norwegian.