
Verbe régulier : lengthen -  lengthened - lengthened
Traduction française : s'allonger - allonger 
Forme simple | Forme en V-ing | 
| I may lengthen you may lengthen she may lengthen we may lengthen you may lengthen they may lengthen  | I may be lengthening you may be lengthening she may be lengthening we may be lengthening you may be lengthening they may be lengthening  | 
Perfect | Perfect en V-ing | 
| I may have lengthened you may have lengthened she may have lengthened we may have lengthened you may have lengthened they may have lengthened  | I may have been lengthening you may have been lengthening she may have been lengthening we may have been lengthening you may have been lengthening they may have been lengthening  | 
Forme simple | Forme en V-ing | 
| I mayn't lengthen you mayn't lengthen she mayn't lengthen we mayn't lengthen you mayn't lengthen they mayn't lengthen  | I mayn't be lengthening you mayn't be lengthening she mayn't be lengthening we mayn't be lengthening you mayn't be lengthening they mayn't be lengthening  | 
Perfect | Perfect en V-ing | 
| I mayn't have lengthened you mayn't have lengthened she mayn't have lengthened we mayn't have lengthened you mayn't have lengthened they mayn't have lengthened  | I mayn't have been lengthening you mayn't have been lengthening she mayn't have been lengthening we mayn't have been lengthening you mayn't have been lengthening they mayn't have been lengthening  | 
Forme simple | Forme en V-ing | 
| may I lengthen? may you lengthen? may she lengthen? may we lengthen? may you lengthen? may they lengthen?  | may I be lengthening? may you be lengthening? may she be lengthening? may we be lengthening? may you be lengthening? may they be lengthening?  | 
Perfect | Perfect en V-ing | 
| may I have lengthened? may you have lengthened? may she have lengthened? may we have lengthened? may you have lengthened? may they have lengthened?  | may I have been lengthening? may you have been lengthening? may she have been lengthening? may we have been lengthening? may you have been lengthening? may they have been lengthening?  | 
Forme simple | Forme en V-ing | 
| mayn't I lengthen? mayn't you lengthen? mayn't she lengthen? mayn't we lengthen? mayn't you lengthen? mayn't they lengthen?  | mayn't I be lengthening? mayn't you be lengthening? mayn't she be lengthening? mayn't we be lengthening? mayn't you be lengthening? mayn't they be lengthening?  | 
Perfect | Perfect en V-ing | 
| mayn't I have lengthened? mayn't you have lengthened? mayn't she have lengthened? mayn't we have lengthened? mayn't you have lengthened? mayn't they have lengthened?  | mayn't I have been lengthening? mayn't you have been lengthening? mayn't she have been lengthening? mayn't we have been lengthening? mayn't you have been lengthening? mayn't they have been lengthening?  |