Is this about the affirmative command from ir or irse?

Hola Andy

There are two questions related to this lesson which are using the verb "irse" in the imperative. These two sentences are:

This is conjugating irse in the nosotros form of the imperative (for nosotros it is the present subjunctive form), and has the pronoun nos attached.

This is conjugating irse in the ustedes form of the imperative (for ustedes it is the present subjunctive form), and has the pronoun se attached.

I hope this helps,

Saludos

Inma