
Verbe régulier : undertain - undertained - undertained
Présent | Présent continu | Prétérit | Prétérit continu | 
|  do I undertain? do you undertain? does she undertain? do we undertain? do you undertain? do they undertain?  |  am I undertaining? are you undertaining? is she undertaining? are we undertaining? are you undertaining? are they undertaining?  | did I undertain? did you undertain? did she undertain? did we undertain? did you undertain? did they undertain?  |  was I undertaining? were you undertaining? was she undertaining? were we undertaining? were you undertaining? were they undertaining?  | 
Present perfect | Present perfect continu | Pluperfect | Pluperfect continu | 
|  have I undertained? have you undertained? has she undertained? have we undertained? have you undertained? have they undertained?  |  have I been undertaining? have you been undertaining? has she been undertaining? have we been undertaining? have you been undertaining? have they been undertaining?  | had I undertained? had you undertained? had she undertained? had we undertained? had you undertained? had they undertained?  | had I been undertaining? had you been undertaining? had she been undertaining? had we been undertaining? had you been undertaining? had they been undertaining?  | 
Futur | Futur continu | Futur antérieur | Futur antérieur continu | 
|  will I undertain? will you undertain? will she undertain? will we undertain? will you undertain? will they undertain?  |  will I be undertaining? will you be undertaining? will she be undertaining? will we be undertaining? will you be undertaining? will they be undertaining?  |  will I have undertained? will you have undertained? will she have undertained? will we have undertained? will you have undertained? will they have undertained?  |  will I have been undertaining? will you have been undertaining? will she have been undertaining? will we have been undertaining? will you have been undertaining? will they have been undertaining?  | 
Présent | Présent continu | Passé | Passé continu | 
|  would I undertain? would you undertain? would she undertain? would we undertain? would you undertain? would they undertain?  |  would I be undertaining? would you be undertaining? would she be undertaining? would we be undertaining? would you be undertaining? would they be undertaining?  |  would I have undertained? would you have undertained? would she have undertained? would we have undertained? would you have undertained? would they have undertained?  |  would I have been undertaining? would you have been undertaining? would she have been undertaining? would we have been undertaining? would you have been undertaining? would they have been undertaining?  | 
Infinitif | Impératif | 
Infinitif | Impératif | ||
| to undertain | - - -  | 
Présent | Passé | ||
| undertaining | undertained |