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