to be
ser
i am
soy
you are
eres
she is
es
we are
somos
they are
son
i was (pret)
fui
you were (pret)
fuiste
she was (pret)
fue
we were (pret)
fuimos
they were (pret)
fueron
i was (imp)
era
you were (imp)
eras
she was (imp)
era
we were (imp)
éramos
they were (imp)
eran