I must manufacture you must manufacture he must manufacture we must manufacture you must manufacture they must manufacture
V-ing form
I must be manufacturing you must be manufacturing he must be manufacturing we must be manufacturing you must be manufacturing they must be manufacturing
Perfect
I must have manufactured you must have manufactured he must have manufactured we must have manufactured you must have manufactured they must have manufactured
V-ing perfect
I must have been manufacturing you must have been manufacturing he must have been manufacturing we must have been manufacturing you must have been manufacturing they must have been manufacturing
Negation
Simple form
I must not manufacture you must not manufacture he must not manufacture we must not manufacture you must not manufacture they must not manufacture
V-ing form
I must not be manufacturing you must not be manufacturing he must not be manufacturing we must not be manufacturing you must not be manufacturing they must not be manufacturing
Perfect
I must not have manufactured you must not have manufactured he must not have manufactured we must not have manufactured you must not have manufactured they must not have manufactured
V-ing perfect
I must not have been manufacturing you must not have been manufacturing he must not have been manufacturing we must not have been manufacturing you must not have been manufacturing they must not have been manufacturing
Interrogative form
Simple form
must I manufacture? must you manufacture? must he manufacture? must we manufacture? must you manufacture? must they manufacture?
V-ing form
must I be manufacturing? must you be manufacturing? must he be manufacturing? must we be manufacturing? must you be manufacturing? must they be manufacturing?
Perfect
must I have manufactured? must you have manufactured? must he have manufactured? must we have manufactured? must you have manufactured? must they have manufactured?
V-ing perfect
must I have been manufacturing? must you have been manufacturing? must he have been manufacturing? must we have been manufacturing? must you have been manufacturing? must they have been manufacturing?
Interro-negative form
Simple form
must I not manufacture? must you not manufacture? must he not manufacture? must we not manufacture? must you not manufacture? must they not manufacture?
V-ing form
must I not be manufacturing? must you not be manufacturing? must he not be manufacturing? must we not be manufacturing? must you not be manufacturing? must they not be manufacturing?
Perfect
must I not have manufactured? must you not have manufactured? must he not have manufactured? must we not have manufactured? must you not have manufactured? must they not have manufactured?
V-ing perfect
must I not have been manufacturing? must you not have been manufacturing? must he not have been manufacturing? must we not have been manufacturing? must you not have been manufacturing? must they not have been manufacturing?