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