amagaban
Imperfecto para el sujeto ellos/ellas/ustedes del verbo amagar.

amagar

Popularity
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Ya era de noche, noche fría, sombría, con el cielo encapotado, cuyas nubes amagaban resolverse en nieve.
It was already night, cold and cheerless, the heavens being overcast with clouds which seemed to threaten snow.
Palabra del día
el poema