may manufacture
Regular verb: manufacture - manufactured- manufactured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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?