had been clacking
-había estado tableteando
Past perfect progressive conjugation of clack. There are other translations for this conjugation.

clack

INTRANSITIVE VERB
(to make a series of sounds)-tabletear
Synonyms for clack
NOUN
(sound of clacking)-el tableteo
Synonyms for clack
INTRANSITIVE VERB
(to chatter)-charlar
Synonyms for clack
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