I may manufacture you may manufacture he may manufacture we may manufacture you may manufacture they may manufacture
V-ing form
I may be manufacturing you may be manufacturing he may be manufacturing we may be manufacturing you may be manufacturing they may be manufacturing
Perfect
I may have manufactured you may have manufactured he may have manufactured we may have manufactured you may have manufactured they may have manufactured
V-ing perfect
I may have been manufacturing you may have been manufacturing he may have been manufacturing we may have been manufacturing you may have been manufacturing they may have been manufacturing
Negation
Simple form
I mayn't manufacture you mayn't manufacture he mayn't manufacture we mayn't manufacture you mayn't manufacture they mayn't manufacture
V-ing form
I mayn't be manufacturing you mayn't be manufacturing he mayn't be manufacturing we mayn't be manufacturing you mayn't be manufacturing they mayn't be manufacturing
Perfect
I mayn't have manufactured you mayn't have manufactured he mayn't have manufactured we mayn't have manufactured you mayn't have manufactured they mayn't have manufactured
V-ing perfect
I mayn't have been manufacturing you mayn't have been manufacturing he mayn't have been manufacturing we mayn't have been manufacturing you mayn't have been manufacturing they mayn't have been manufacturing
Interrogative form
Simple form
may I manufacture? may you manufacture? may he manufacture? may we manufacture? may you manufacture? may they manufacture?
V-ing form
may I be manufacturing? may you be manufacturing? may he be manufacturing? may we be manufacturing? may you be manufacturing? may they be manufacturing?
Perfect
may I have manufactured? may you have manufactured? may he have manufactured? may we have manufactured? may you have manufactured? may they have manufactured?
V-ing perfect
may I have been manufacturing? may you have been manufacturing? may he have been manufacturing? may we have been manufacturing? may you have been manufacturing? may they have been manufacturing?
Interro-negative form
Simple form
mayn't I manufacture? mayn't you manufacture? mayn't he manufacture? mayn't we manufacture? mayn't you manufacture? mayn't they manufacture?
V-ing form
mayn't I be manufacturing? mayn't you be manufacturing? mayn't he be manufacturing? mayn't we be manufacturing? mayn't you be manufacturing? mayn't they be manufacturing?
Perfect
mayn't I have manufactured? mayn't you have manufactured? mayn't he have manufactured? mayn't we have manufactured? mayn't you have manufactured? mayn't they have manufactured?
V-ing perfect
mayn't I have been manufacturing? mayn't you have been manufacturing? mayn't he have been manufacturing? mayn't we have been manufacturing? mayn't you have been manufacturing? mayn't they have been manufacturing?