
Verbo regolare: caution - cautioned - cautioned
Forma semplice | Forma con V-ing | 
| I may caution you may caution he may caution we may caution you may caution they may caution  | I may be cautioning you may be cautioning he may be cautioning we may be cautioning you may be cautioning they may be cautioning  | 
Perfetto | Perfetto con V-ing | 
| I may have cautioned you may have cautioned he may have cautioned we may have cautioned you may have cautioned they may have cautioned  | I may have been cautioning you may have been cautioning he may have been cautioning we may have been cautioning you may have been cautioning they may have been cautioning  | 
Forma semplice | Forma con V-ing | 
| I mayn't caution you mayn't caution he mayn't caution we mayn't caution you mayn't caution they mayn't caution  | I mayn't be cautioning you mayn't be cautioning he mayn't be cautioning we mayn't be cautioning you mayn't be cautioning they mayn't be cautioning  | 
Perfetto | Perfetto con V-ing | 
| I mayn't have cautioned you mayn't have cautioned he mayn't have cautioned we mayn't have cautioned you mayn't have cautioned they mayn't have cautioned  | I mayn't have been cautioning you mayn't have been cautioning he mayn't have been cautioning we mayn't have been cautioning you mayn't have been cautioning they mayn't have been cautioning  | 
Forma semplice | Forma con V-ing | 
| may I caution? may you caution? may he caution? may we caution? may you caution? may they caution?  | may I be cautioning? may you be cautioning? may he be cautioning? may we be cautioning? may you be cautioning? may they be cautioning?  | 
Perfetto | Perfetto con V-ing | 
| may I have cautioned? may you have cautioned? may he have cautioned? may we have cautioned? may you have cautioned? may they have cautioned?  | may I have been cautioning? may you have been cautioning? may he have been cautioning? may we have been cautioning? may you have been cautioning? may they have been cautioning?  | 
Forma semplice | Forma con V-ing | 
| mayn't I caution? mayn't you caution? mayn't he caution? mayn't we caution? mayn't you caution? mayn't they caution?  | mayn't I be cautioning? mayn't you be cautioning? mayn't he be cautioning? mayn't we be cautioning? mayn't you be cautioning? mayn't they be cautioning?  | 
Perfetto | Perfetto con V-ing | 
| mayn't I have cautioned? mayn't you have cautioned? mayn't he have cautioned? mayn't we have cautioned? mayn't you have cautioned? mayn't they have cautioned?  | mayn't I have been cautioning? mayn't you have been cautioning? mayn't he have been cautioning? mayn't we have been cautioning? mayn't you have been cautioning? mayn't they have been cautioning?  |