SENTENCES

<subject> <be> <complement>
I/he/they/<name>  be? whatever

FOR PAST SENTENSES "BE" IS EQUALS TO:

I was
he was
she was
it was
you were
we were
they were

be = SER
she was a doctor
they are teachers
we are students
I wasn't an engineer
Gene wasn't my wife

be = estar
I was fine
we were happy
the teacher Juan was in the school
they weren't in the park
she wasn't at home

QUESTIONS

<be> <subject> <complement> ?
be=SER
was I an engineer?
was she a doctor?
were they teachers?
was Gene my wife? is gene your wife?
weren't we students?

be=estar
am I fine? are you fine?
was the teacher juan in the school?
were they in the park?
wasn't she at home?
were we happy?