Commands

[AlwaysLost]

If I wanted to order someone to clean a mess we both see, would I say....

Limpies esto ahora!

[Rusty]

Get rid of the 's' to create the formal imperative, and add the opening exclamation mark.

¡Limpie esto ahora!

Here are some of the imperative conjugations. Look here (http://conjugator.reverso.net/conjugation-spanish-verb-limpiar.html) for the rest.

limpie (usted, él, ella)
limpien (ustedes, ellos, ellas)
limpia (tú)
limpiad (vosotros)