don't I undertain? don't you undertain? doesn't he undertain? don't we undertain? don't you undertain? don't they undertain?
Présent continu
am I not undertaining? aren't you undertaining? isn't he undertaining? aren't we undertaining? aren't you undertaining? aren't they undertaining?
Prétérit
didn't I undertain? didn't you undertain? didn't he undertain? didn't we undertain? didn't you undertain? didn't they undertain?
Prétérit
wasn't I undertaining? weren't you undertaining? wasn't he undertaining? weren't we undertaining? weren't you undertaining? weren't they undertaining?
Present perfect
haven't I undertained? haven't you undertained? hasn't he undertained? haven't we undertained? haven't you undertained? haven't they undertained?
Present perfect continu
haven't I been undertaining? haven't you been undertaining? hasn't he been undertaining? haven't we been undertaining? haven't you been undertaining? haven't they been undertaining?
Pluperfect
hadn't I undertained? hadn't you undertained? hadn't he undertained? hadn't we undertained? hadn't you undertained? hadn't they undertained?
Pluperfect continu
hadn't I been undertaining? hadn't you been undertaining? hadn't he been undertaining? hadn't we been undertaining? hadn't you been undertaining? hadn't they been undertaining?
Futur
won't I undertain? won't you undertain? won't he undertain? won't we undertain? won't you undertain? won't they undertain?
Futur continu
won't I be undertaining? won't you be undertaining? won't he be undertaining? won't we be undertaining? won't you be undertaining? won't they be undertaining?
Futur antérieur
won't I have undertained? won't you have undertained? won't he have undertained? won't we have undertained? won't you have undertained? won't they have undertained?
Futur antérieur continu
won't I have been undertaining? won't you have been undertaining? won't he have been undertaining? won't we have been undertaining? won't you have been undertaining? won't they have been undertaining?
Conditionnel
Présent
wouldn't I undertain? wouldn't you undertain? wouldn't he undertain? wouldn't we undertain? wouldn't you undertain? wouldn't they undertain?
Présent continu
wouldn't I be undertaining? wouldn't you be undertaining? wouldn't he be undertaining? wouldn't we be undertaining? wouldn't you be undertaining? wouldn't they be undertaining?
Passé
wouldn't I have undertained? wouldn't you have undertained? wouldn't he have undertained? wouldn't we have undertained? wouldn't you have undertained? wouldn't they have undertained?
Passé continu
wouldn't I have been undertaining? wouldn't you have been undertaining? wouldn't he have been undertaining? wouldn't we have been undertaining? wouldn't you have been undertaining? wouldn't they have been undertaining?