
Verbe régulier : develop -  developed - developed
Traduction française : se développer - développer 
Forme simple | Forme en V-ing | 
| I could develop you could develop she could develop we could develop you could develop they could develop  | I could be developing you could be developing she could be developing we could be developing you could be developing they could be developing  | 
Perfect | Perfect en V-ing | 
| I could have developed you could have developed she could have developed we could have developed you could have developed they could have developed  | I could have been developing you could have been developing she could have been developing we could have been developing you could have been developing they could have been developing  | 
Forme simple | Forme en V-ing | 
| I couldn't develop you couldn't develop she couldn't develop we couldn't develop you couldn't develop they couldn't develop  | I couldn't be developing you couldn't be developing she couldn't be developing we couldn't be developing you couldn't be developing they couldn't be developing  | 
Perfect | Perfect en V-ing | 
| I couldn't have developed you couldn't have developed she couldn't have developed we couldn't have developed you couldn't have developed they couldn't have developed  | I couldn't have been developing you couldn't have been developing she couldn't have been developing we couldn't have been developing you couldn't have been developing they couldn't have been developing  | 
Forme simple | Forme en V-ing | 
| could I develop? could you develop? could she develop? could we develop? could you develop? could they develop?  | could I be developing? could you be developing? could she be developing? could we be developing? could you be developing? could they be developing?  | 
Perfect | Perfect en V-ing | 
| could I have developed? could you have developed? could she have developed? could we have developed? could you have developed? could they have developed?  | could I have been developing? could you have been developing? could she have been developing? could we have been developing? could you have been developing? could they have been developing?  | 
Forme simple | Forme en V-ing | 
| couldn't I develop? couldn't you develop? couldn't she develop? couldn't we develop? couldn't you develop? couldn't they develop?  | couldn't I be developing? couldn't you be developing? couldn't she be developing? couldn't we be developing? couldn't you be developing? couldn't they be developing?  | 
Perfect | Perfect en V-ing | 
| couldn't I have developed? couldn't you have developed? couldn't she have developed? couldn't we have developed? couldn't you have developed? couldn't they have developed?  | couldn't I have been developing? couldn't you have been developing? couldn't she have been developing? couldn't we have been developing? couldn't you have been developing? couldn't they have been developing?  |