
Verbe régulier : undertain - undertained - undertained
Forme simple | Forme en V-ing | 
| I'll undertain you'll undertain she'll undertain we'll undertain you'll undertain they'll undertain  | I'll be undertaining you'll be undertaining she'll be undertaining we'll be undertaining you'll be undertaining they'll be undertaining  | 
Perfect | Perfect en V-ing | 
| I'll have undertained you'll have undertained she'll have undertained we'll have undertained you'll have undertained they'll have undertained  | I'll have been undertaining you'll have been undertaining she'll have been undertaining we'll have been undertaining you'll have been undertaining they'll have been undertaining  | 
Forme simple | Forme en V-ing | 
| I won't undertain you won't undertain she won't undertain we won't undertain you won't undertain they won't undertain  | I won't be undertaining you won't be undertaining she won't be undertaining we won't be undertaining you won't be undertaining they won't be undertaining  | 
Perfect | Perfect en V-ing | 
| I won't have undertained you won't have undertained she won't have undertained we won't have undertained you won't have undertained they won't have undertained  | I won't have been undertaining you won't have been undertaining she won't have been undertaining we won't have been undertaining you won't have been undertaining they won't have been undertaining  | 
Forme simple | Forme en V-ing | 
| 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?  | 
Perfect | Perfect en V-ing | 
| 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?  | 
Forme simple | Forme en V-ing | 
| won't I undertain? won't you undertain? won't she undertain? won't we undertain? won't you undertain? won't they undertain?  | won't I be undertaining? won't you be undertaining? won't she be undertaining? won't we be undertaining? won't you be undertaining? won't they be undertaining?  | 
Perfect | Perfect en V-ing | 
| won't I have undertained? won't you have undertained? won't she have undertained? won't we have undertained? won't you have undertained? won't they have undertained?  | won't I have been undertaining? won't you have been undertaining? won't she have been undertaining? won't we have been undertaining? won't you have been undertaining? won't they have been undertaining?  |