estaban helando
-they/you were freezing
Imperfecto progresivo para el sujeto ellos/ellas/ustedes del verbo helar.

helar

Tan fuerte era el tornillo que pronto cayó un visitante a pedir alguna manta prestada, porque él y su mujer acampaban en la orilla del lago y se estaban helando.
It was so fiercely cold that a visitor soon appeared asking to borrow some blankets because he and his wife were camping by the edge of lake and they were freezing.
Eran tan pobres, y se estaban helando con mantas durante la estación lluviosa, en los refugios construidos por la ONU, solo estaban proporcionando una lona de plástico, y los refugiados tuvieron que cortar los árboles justo como este.
They're so poor, and they are freezing with blankets during the rainy season, In the shelters built by the U.N., they were just providing a plastic sheet, and the refugees had to cut the trees, and just like this.
Palabra del día
el patinaje