must margin
Regular verb: margin - margined- margined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must margin
you must margin
he must margin
we must margin
you must margin
they must margin 	I must be margining
you must be margining
he must be margining
we must be margining
you must be margining
they must be margining	I must have margined
you must have margined
he must have margined
we must have margined
you must have margined
they must have margined	I must have been margining
you must have been margining
he must have been margining
we must have been margining
you must have been margining
they must have been margining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not margin
you must not margin
he must not margin
we must not margin
you must not margin
they must not margin 	I must not be margining
you must not be margining
he must not be margining
we must not be margining
you must not be margining
they must not be margining	I must not have margined
you must not have margined
he must not have margined
we must not have margined
you must not have margined
they must not have margined	I must not have been margining
you must not have been margining
he must not have been margining
we must not have been margining
you must not have been margining
they must not have been margining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I margin?
must you margin?
must he margin?
must we margin?
must you margin?
must they margin? 	must I be margining?
must you be margining?
must he be margining?
must we be margining?
must you be margining?
must they be margining? 	must I have margined?
must you have margined?
must he have margined?
must we have margined?
must you have margined?
must they have margined? 	must I have been margining?
must you have been margining?
must he have been margining?
must we have been margining?
must you have been margining?
must they have been margining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not margin?
must you not margin?
must he not margin?
must we not margin?
must you not margin?
must they not margin? 	must I not be margining?
must you not be margining?
must he not be margining?
must we not be margining?
must you not be margining?
must they not be margining? 	must I not have margined?
must you not have margined?
must he not have margined?
must we not have margined?
must you not have margined?
must they not have margined? 	must I not have been margining?
must you not have been margining?
must he not have been margining?
must we not have been margining?
must you not have been margining?
must they not have been margining?