had been sneaking
Past perfect progressive conjugation of sneak.
See all conjugations of sneak

sneak

Popularity
500+ learners.
INTRANSITIVE VERB
(to move furtively; used with "in", "out" or "up")-colarse
Synonyms for sneak
slide
deslizarse
slip away
escabullirse
worm
arrastrarse
NOUN
(contemptible person)-el soplón
Synonyms for sneak
swindler
el estafador
worm
el gusano
wretch
el desgraciado
creep
el asqueroso
informant
el/la informante
informer
el/la informante
skunk
el/la canalla
trickster
el estafador
ADJECTIVE
(clandestine)-sorpresa
Synonyms for sneak
clandestine
clandestino
covert
encubierto
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