Breakdown of ¡No le ensuciéis el delantal!
no
no / not
le
to him / to her / to you (formal) / him (direct object, male person)
ensuciar
to dirty
el delantal
the apron
Questions & Answers about ¡No le ensuciéis el delantal!
Why does the verb end in -éis instead of -áis?
Why is there a le before the verb?
Why does the sentence use el delantal (the apron) instead of su delantal (his apron)?
When talking about clothing or body parts, Spanish usually uses the definite article (el, la, los, las) instead of a possessive word like su. Combined with the le from earlier, le ... el delantal smoothly translates to 'his apron' in English.
What is the infinitive form of the verb used here?
The infinitive is ensuciar, which means 'to dirty' or 'to get dirty'. It is related to the adjective sucio, which means 'dirty'.