do I refer? do you refer? does she refer? do we refer? do you refer? do they refer?
Presente continuo
am I referring? are you referring? is she referring? are we referring? are you referring? are they referring?
Pretérito
did I refer? did you refer? did she refer? did we refer? did you refer? did they refer?
Pretérito continuo
was I referring? were you referring? was she referring? were we referring? were you referring? were they referring?
Presente perfecto
have I referred? have you referred? has she referred? have we referred? have you referred? have they referred?
Presente perfecto continuo
have I been referring? have you been referring? has she been referring? have we been referring? have you been referring? have they been referring?
Pluscuamperfecto
had I referred? had you referred? had she referred? had we referred? had you referred? had they referred?
Pluscuamperfecto continuo
had I been referring? had you been referring? had she been referring? had we been referring? had you been referring? had they been referring?
Futuro simple
will I refer? will you refer? will she refer? will we refer? will you refer? will they refer?
Futuro continuo
will I be referring? will you be referring? will she be referring? will we be referring? will you be referring? will they be referring?
Futuro perfecto
will I have referred? will you have referred? will she have referred? will we have referred? will you have referred? will they have referred?
Futuro perfecto contínuo
will I have been referring? will you have been referring? will she have been referring? will we have been referring? will you have been referring? will they have been referring?
Condicional
Presente
would I refer? would you refer? would she refer? would we refer? would you refer? would they refer?
Presente continuo
would I be referring? would you be referring? would she be referring? would we be referring? would you be referring? would they be referring?
Passado
would I have referred? would you have referred? would she have referred? would we have referred? would you have referred? would they have referred?
Passado continuo
would I have been referring? would you have been referring? would she have been referring? would we have been referring? would you have been referring? would they have been referring?