must patent
Regular verb: patent - patented- patented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must patent
you must patent
he must patent
we must patent
you must patent
they must patent 	I must be patenting
you must be patenting
he must be patenting
we must be patenting
you must be patenting
they must be patenting	I must have patented
you must have patented
he must have patented
we must have patented
you must have patented
they must have patented	I must have been patenting
you must have been patenting
he must have been patenting
we must have been patenting
you must have been patenting
they must have been patenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't patent
you mustn't patent
he mustn't patent
we mustn't patent
you mustn't patent
they mustn't patent 	I mustn't be patenting
you mustn't be patenting
he mustn't be patenting
we mustn't be patenting
you mustn't be patenting
they mustn't be patenting	I mustn't have patented
you mustn't have patented
he mustn't have patented
we mustn't have patented
you mustn't have patented
they mustn't have patented	I mustn't have been patenting
you mustn't have been patenting
he mustn't have been patenting
we mustn't have been patenting
you mustn't have been patenting
they mustn't have been patenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I patent?
must you patent?
must he patent?
must we patent?
must you patent?
must they patent? 	must I be patenting?
must you be patenting?
must he be patenting?
must we be patenting?
must you be patenting?
must they be patenting? 	must I have patented?
must you have patented?
must he have patented?
must we have patented?
must you have patented?
must they have patented? 	must I have been patenting?
must you have been patenting?
must he have been patenting?
must we have been patenting?
must you have been patenting?
must they have been patenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I patent?
mustn't you patent?
mustn't he patent?
mustn't we patent?
mustn't you patent?
mustn't they patent? 	mustn't I be patenting?
mustn't you be patenting?
mustn't he be patenting?
mustn't we be patenting?
mustn't you be patenting?
mustn't they be patenting? 	mustn't I have patented?
mustn't you have patented?
mustn't he have patented?
mustn't we have patented?
mustn't you have patented?
mustn't they have patented? 	mustn't I have been patenting?
mustn't you have been patenting?
mustn't he have been patenting?
mustn't we have been patenting?
mustn't you have been patenting?
mustn't they have been patenting?