Usted and ustedes commands are created like negative tú commands and are used for both affirmative and negative commands.
To create an usted command, remember the mantra: form of yo, drop the – o, add the opposite ending. Think of the present tense yo form of the verb you want to make into an usted command, then drop the – o ending and add the él, ella, or usted ending normally used for the opposite kind of verb. For an – ar verb, use – e, and for an – er or – ir verb, use – a. Table 1 shows the endings for usted and ustedes commands.