
Regular verb: manufacture - manufactured - manufactured
Simple form | V-ing form | 
| I may manufacture you may manufacture she may manufacture we may manufacture you may manufacture they may manufacture  | I may be manufacturing you may be manufacturing she may be manufacturing we may be manufacturing you may be manufacturing they may be manufacturing  | 
Perfect | V-ing perfect | 
| I may have manufactured you may have manufactured she may have manufactured we may have manufactured you may have manufactured they may have manufactured  | I may have been manufacturing you may have been manufacturing she may have been manufacturing we may have been manufacturing you may have been manufacturing they may have been manufacturing  | 
Simple form | V-ing form | 
| I mayn't manufacture you mayn't manufacture she mayn't manufacture we mayn't manufacture you mayn't manufacture they mayn't manufacture  | I mayn't be manufacturing you mayn't be manufacturing she mayn't be manufacturing we mayn't be manufacturing you mayn't be manufacturing they mayn't be manufacturing  | 
Perfect | V-ing perfect | 
| I mayn't have manufactured you mayn't have manufactured she mayn't have manufactured we mayn't have manufactured you mayn't have manufactured they mayn't have manufactured  | I mayn't have been manufacturing you mayn't have been manufacturing she mayn't have been manufacturing we mayn't have been manufacturing you mayn't have been manufacturing they mayn't have been manufacturing  | 
Simple form | V-ing form | 
| may I manufacture? may you manufacture? may she manufacture? may we manufacture? may you manufacture? may they manufacture?  | may I be manufacturing? may you be manufacturing? may she be manufacturing? may we be manufacturing? may you be manufacturing? may they be manufacturing?  | 
Perfect | V-ing perfect | 
| may I have manufactured? may you have manufactured? may she have manufactured? may we have manufactured? may you have manufactured? may they have manufactured?  | may I have been manufacturing? may you have been manufacturing? may she have been manufacturing? may we have been manufacturing? may you have been manufacturing? may they have been manufacturing?  | 
Simple form | V-ing form | 
| mayn't I manufacture? mayn't you manufacture? mayn't she manufacture? mayn't we manufacture? mayn't you manufacture? mayn't they manufacture?  | mayn't I be manufacturing? mayn't you be manufacturing? mayn't she be manufacturing? mayn't we be manufacturing? mayn't you be manufacturing? mayn't they be manufacturing?  | 
Perfect | V-ing perfect | 
| mayn't I have manufactured? mayn't you have manufactured? mayn't she have manufactured? mayn't we have manufactured? mayn't you have manufactured? mayn't they have manufactured?  | mayn't I have been manufacturing? mayn't you have been manufacturing? mayn't she have been manufacturing? mayn't we have been manufacturing? mayn't you have been manufacturing? mayn't they have been manufacturing?  |