To say "Please Do Not Clean" in Spanish, you would say "Por favor, no limpiar." In this phrase, "Por favor" means "please," "no" means "not," and "limpiar" means "clean." The verb "limpiar" is conjugated in the imperative form to give the command "do not clean."
después de hacer la cama tengo que limpiar el baño
Favor de limpiar el refrigerador el lunes.
"Please" in Spanish is "por favor".
More context, please! (Architectural? domestic? furnishing? culinary? etc.)
Ha limpiado usted mi casa (formal) Has limpiado mi casa (informal)
Mi abuela quiere que tú limpies su casa.
"I went to his house" in Spanish is "Fui a su casa". It is pronounced "Fwee ah sue KA-sah". Please see the Related link below for confirmation of the translation.
(Command) Limpia mi pizarrón, por favor. (You) Limpias mi pizarrón, por favor.
house = casa
Su/Tu casa es muy limpia por dentro. (Formal/Informal)
If you are asking someone to say something in Spanish you will use the phrase "en español porfavor" or "In Spanish please."