Resultados posibles:
borbotaba
-I was bubbling
Imperfecto para el sujeto yo del verbo borbotar.
Imperfecto para el sujeto él/ella/usted del verbo borbotar.

borbotar

Solo le cubría la sangre, que borbotaba de sus numerosas heridas.
He was covered only by the blood which flowed from his gaping wounds.
Palabra del día
saborear