"Don't stand so close to me."
Translation:Ikke stå så nær meg.
Do negative imperatives always begin with "ikke"? Or could it be "Stå ikke" too?
They should always begin with 'ikke', unless you want to write in an old-fashioned style.
No, you use the imperative form, which is the infinitive minus the final -e. For verbs that end in something other than -e, I'm not sure the rule. But for instance, "å spise" is the infinitive, and "spis" is the imperative, "Spis is!" is what you might say as you're throwing a snowball at someone.