must produce
Regular verb: produce - produced- produced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must produce
you must produce
she must produce
we must produce
you must produce
they must produce 	I must be producing
you must be producing
she must be producing
we must be producing
you must be producing
they must be producing	I must have produced
you must have produced
she must have produced
we must have produced
you must have produced
they must have produced	I must have been producing
you must have been producing
she must have been producing
we must have been producing
you must have been producing
they must have been producing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not produce
you must not produce
she must not produce
we must not produce
you must not produce
they must not produce 	I must not be producing
you must not be producing
she must not be producing
we must not be producing
you must not be producing
they must not be producing	I must not have produced
you must not have produced
she must not have produced
we must not have produced
you must not have produced
they must not have produced	I must not have been producing
you must not have been producing
she must not have been producing
we must not have been producing
you must not have been producing
they must not have been producing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I produce?
must you produce?
must she produce?
must we produce?
must you produce?
must they produce? 	must I be producing?
must you be producing?
must she be producing?
must we be producing?
must you be producing?
must they be producing? 	must I have produced?
must you have produced?
must she have produced?
must we have produced?
must you have produced?
must they have produced? 	must I have been producing?
must you have been producing?
must she have been producing?
must we have been producing?
must you have been producing?
must they have been producing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not produce?
must you not produce?
must she not produce?
must we not produce?
must you not produce?
must they not produce? 	must I not be producing?
must you not be producing?
must she not be producing?
must we not be producing?
must you not be producing?
must they not be producing? 	must I not have produced?
must you not have produced?
must she not have produced?
must we not have produced?
must you not have produced?
must they not have produced? 	must I not have been producing?
must you not have been producing?
must she not have been producing?
must we not have been producing?
must you not have been producing?
must they not have been producing?