estaban alimentando
Imperfecto progresivo para el sujeto ellos/ellas/ustedes del verbo alimentar.

alimentar

Sí, pero se estaban alimentando.
Yeah, but they were feeding.
Las derivas eran largas, variadas y notabamos que los tarpones se estaban alimentando a nuestro alrededor.
The drifts were long, varied, and consistently tarpon were feeding.
¡Ellos se estaban alimentando unos a otros, y eso era la Gloria!!
They were feeding each other, and that was heaven!!
Igual los niños allí no estaban pasando hambre, pero no se estaban alimentando todo lo bien que deberían.
The kids there were not hungry, but they were not feeding as well as they should be.
Palabra del día
el discurso