achicaban
Imperfecto para el sujeto ellos/ellas/ustedes del verbo achicar.

achicar

Observó que las células hinchadas con líquido en el cuerpo de los pacientes se achicaban a medida que se liberaba el líquido.
He noticed that cells in the patients' bodies that had been bloated with fluid started to shrink as the fluid was released.
Al menos cada trepada regalaba unas panorámicas envidiables de los alrededores y uno podía ver cómo se achicaban los poblados que se habían cruzado hasta convertirse en un puntito allá abajo y a lo lejos.
At least with each climb one was rewarded by enviable panoramic views of the surroundings and how small the towns that I just passed were getting to become just a little dot down there and far away.
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