"Have a pleasant evening!"
Translation:Ha en hyggelig kveld!
Yes, an imperative is a command, while the present tense can be used for statements, observations, questions.
In English, the imperative and the simple present look identical when the infinitive mark is not present, but in Norwegian there's usually a difference between the two.
In English the imperative is the infinitive without "to":
- to be
- You are good. - Be good!
- We are good. - Let's be good!
The infinitive and the simple present are usually the same, except for the third person singular (e.g. to go, he goes), and the third person doesn't take the imperative.