
Verbe régulier : caution -  cautioned - cautioned
Traduction française : avertir - déconseiller 
Forme simple | Forme en V-ing | 
| I could caution you could caution she could caution we could caution you could caution they could caution  | I could be cautioning you could be cautioning she could be cautioning we could be cautioning you could be cautioning they could be cautioning  | 
Perfect | Perfect en V-ing | 
| I could have cautioned you could have cautioned she could have cautioned we could have cautioned you could have cautioned they could have cautioned  | I could have been cautioning you could have been cautioning she could have been cautioning we could have been cautioning you could have been cautioning they could have been cautioning  | 
Forme simple | Forme en V-ing | 
| I couldn't caution you couldn't caution she couldn't caution we couldn't caution you couldn't caution they couldn't caution  | I couldn't be cautioning you couldn't be cautioning she couldn't be cautioning we couldn't be cautioning you couldn't be cautioning they couldn't be cautioning  | 
Perfect | Perfect en V-ing | 
| I couldn't have cautioned you couldn't have cautioned she couldn't have cautioned we couldn't have cautioned you couldn't have cautioned they couldn't have cautioned  | I couldn't have been cautioning you couldn't have been cautioning she couldn't have been cautioning we couldn't have been cautioning you couldn't have been cautioning they couldn't have been cautioning  | 
Forme simple | Forme en V-ing | 
| could I caution? could you caution? could she caution? could we caution? could you caution? could they caution?  | could I be cautioning? could you be cautioning? could she be cautioning? could we be cautioning? could you be cautioning? could they be cautioning?  | 
Perfect | Perfect en V-ing | 
| could I have cautioned? could you have cautioned? could she have cautioned? could we have cautioned? could you have cautioned? could they have cautioned?  | could I have been cautioning? could you have been cautioning? could she have been cautioning? could we have been cautioning? could you have been cautioning? could they have been cautioning?  | 
Forme simple | Forme en V-ing | 
| couldn't I caution? couldn't you caution? couldn't she caution? couldn't we caution? couldn't you caution? couldn't they caution?  | couldn't I be cautioning? couldn't you be cautioning? couldn't she be cautioning? couldn't we be cautioning? couldn't you be cautioning? couldn't they be cautioning?  | 
Perfect | Perfect en V-ing | 
| couldn't I have cautioned? couldn't you have cautioned? couldn't she have cautioned? couldn't we have cautioned? couldn't you have cautioned? couldn't they have cautioned?  | couldn't I have been cautioning? couldn't you have been cautioning? couldn't she have been cautioning? couldn't we have been cautioning? couldn't you have been cautioning? couldn't they have been cautioning?  |