yo acusaba
I used to accuse / I was accusing
tú acusabas
you used to accuse / you were accusing
él acusaba
he used to accuse / he was accusing
nosotros acusábamos
we used to accuse / we were accusing
vosotros acusabais
you used to accuse / you were accusing
ellos acusaban
they used to accuse / they were accusing