yo aconsejaba
I used to advise / I was advising
tú aconsejabas
you used to advise / you were advising
él aconsejaba
he used to advise / he was advising
nosotros aconsejábamos
we used to advise / we were advising
vosotros aconsejabais
you used to advise / you were advising
ellos aconsejaban
they used to advise / they were advising