Unas es la palabra correcta
Cubrir is the Spanish for drape
I was taught to call them yo -go irregulars because the verb's stem ends with -go in the yo (I) form
Ex: Yo Tener(To have) becomes "Tengo"
Yo Venir(To come) becomes "Vengo"
Hope this helps
Los Campesinos are a seven-piece indie pop band from Cardiff, Wales, formed in early 2006 at Cardiff University. Though the band formed in Wales, none of the members are Welsh.