had been booming
-había estado retumbando
Past perfect progressive conjugation of boom. There are other translations for this conjugation.
See all conjugations of boom

boom

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500+ learners.
NOUN
(sound)-el estruendo
Synonyms for boom
burst
la salva
chime
la campanada
clamor
el clamor
clang
el sonido metálico
crash
el estruendo
loud noise
ruido fuerte
noise
el ruido
racket
el barullo
roar
el rugido
rumble
el retumbo
rumbling
el estruendo
slam
el portazo
sound
el sonido
thump
el ruido sordo
thunder
el estruendo
INTRANSITIVE VERB
(to sound)-retumbar
Synonyms for boom
chime
tocar
clang
repicar
ring
sonar
roar
rugir
rumble
retumbar
sound
sonar
thunder
retumbar
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