desenfocaban
Imperfecto para el sujetoellos/ellas/ustedesdel verbodesenfocar.

desenfocar

Tsudao se dio cuenta esta vez que las rodillas de Daigotsu temblaban un poco después de hacer el hechizo, que sus ojos se desenfocaban durante un escaso segundo, al cobrarse peaje la magia.
Tsudao noticed this time that Daigotsu's knees buckled slightly after he cast his spell, that his eyes became unfocused for a split second as the magic took its toll.
Palabra del día
el hada madrina