restregaban
Imperfectellos/ellas/ustedesconjugation ofrestregar.

restregar

Ahora uno podía imaginarse que las patitas delanteras se restregaban con facilidad, alegremente.
Now one could imagine that the little front legs rubbed against each other lightly, joyfully.
Los Egipcios aprendieron a mover grandes losas que se restregaban unas con otras tiradas por animales.
The Egyptians learned to move huge slabs that were rubbed each other pulled by animals.
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