Imperativo/1

The imperative mood is used to give orders, advice, or exhortation. To easily form the imperative of 1st conjugation verbs, you just need to switch the tu and the Lei forms. For example, in the present indicative we say:
tu parli - you speak (informal) and Lei parla - you speak (formal),
and in the imperative we say:
parla! - speak! (informal) and parli! - speak! (formal)

For the 2nd and 3rd conjugation, the imperative second person singular is identical to the second person singular form of the present indicative:

tu leggi, tu dormi
leggi! dormi!

For all conjugations, the first and second person plural are identical to the corresponding forms of the present indicative:
noi parliamo, noi leggiamo, noi dormiamo
Parliamo! Leggiamo! Dormiamo!
voi parlate, voi leggete, voi dormite
Parlate! Leggete! Dormite!

Regular verbs therefore have the following imperative forms:

c1 c2
  parlare leggere dormire
tu parla! leggi! dormi!
noi  parliamo! leggiamo! dormiamo!
voi parlate! leggete! dormite!