don't I trip? don't you trip? doesn't she trip? don't we trip? don't you trip? don't they trip?
Presente continuo
am I not tripping? aren't you tripping? isn't she tripping? aren't we tripping? aren't you tripping? aren't they tripping?
Pretérito
didn't I trip? didn't you trip? didn't she trip? didn't we trip? didn't you trip? didn't they trip?
Pretérito continuo
wasn't I tripping? weren't you tripping? wasn't she tripping? weren't we tripping? weren't you tripping? weren't they tripping?
Presente perfecto
haven't I tripped? haven't you tripped? hasn't she tripped? haven't we tripped? haven't you tripped? haven't they tripped?
Presente perfecto continuo
haven't I been tripping? haven't you been tripping? hasn't she been tripping? haven't we been tripping? haven't you been tripping? haven't they been tripping?
Pluscuamperfecto
hadn't I tripped? hadn't you tripped? hadn't she tripped? hadn't we tripped? hadn't you tripped? hadn't they tripped?
Pluscuamperfecto continuo
hadn't I been tripping? hadn't you been tripping? hadn't she been tripping? hadn't we been tripping? hadn't you been tripping? hadn't they been tripping?
Futuro simple
won't I trip? won't you trip? won't she trip? won't we trip? won't you trip? won't they trip?
Futuro continuo
won't I be tripping? won't you be tripping? won't she be tripping? won't we be tripping? won't you be tripping? won't they be tripping?
Futuro perfecto
won't I have tripped? won't you have tripped? won't she have tripped? won't we have tripped? won't you have tripped? won't they have tripped?
Futuro perfecto contínuo
won't I have been tripping? won't you have been tripping? won't she have been tripping? won't we have been tripping? won't you have been tripping? won't they have been tripping?
Condicional
Presente
wouldn't I trip? wouldn't you trip? wouldn't she trip? wouldn't we trip? wouldn't you trip? wouldn't they trip?
Presente continuo
wouldn't I be tripping? wouldn't you be tripping? wouldn't she be tripping? wouldn't we be tripping? wouldn't you be tripping? wouldn't they be tripping?
Passado
wouldn't I have tripped? wouldn't you have tripped? wouldn't she have tripped? wouldn't we have tripped? wouldn't you have tripped? wouldn't they have tripped?
Passado continuo
wouldn't I have been tripping? wouldn't you have been tripping? wouldn't she have been tripping? wouldn't we have been tripping? wouldn't you have been tripping? wouldn't they have been tripping?