must parallel
Regular verb: parallel - paralleled- paralleled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must parallel
you must parallel
he must parallel
we must parallel
you must parallel
they must parallel 	I must be paralleling
you must be paralleling
he must be paralleling
we must be paralleling
you must be paralleling
they must be paralleling	I must have paralleled
you must have paralleled
he must have paralleled
we must have paralleled
you must have paralleled
they must have paralleled	I must have been paralleling
you must have been paralleling
he must have been paralleling
we must have been paralleling
you must have been paralleling
they must have been paralleling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't parallel
you mustn't parallel
he mustn't parallel
we mustn't parallel
you mustn't parallel
they mustn't parallel 	I mustn't be paralleling
you mustn't be paralleling
he mustn't be paralleling
we mustn't be paralleling
you mustn't be paralleling
they mustn't be paralleling	I mustn't have paralleled
you mustn't have paralleled
he mustn't have paralleled
we mustn't have paralleled
you mustn't have paralleled
they mustn't have paralleled	I mustn't have been paralleling
you mustn't have been paralleling
he mustn't have been paralleling
we mustn't have been paralleling
you mustn't have been paralleling
they mustn't have been paralleling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I parallel?
must you parallel?
must he parallel?
must we parallel?
must you parallel?
must they parallel? 	must I be paralleling?
must you be paralleling?
must he be paralleling?
must we be paralleling?
must you be paralleling?
must they be paralleling? 	must I have paralleled?
must you have paralleled?
must he have paralleled?
must we have paralleled?
must you have paralleled?
must they have paralleled? 	must I have been paralleling?
must you have been paralleling?
must he have been paralleling?
must we have been paralleling?
must you have been paralleling?
must they have been paralleling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I parallel?
mustn't you parallel?
mustn't he parallel?
mustn't we parallel?
mustn't you parallel?
mustn't they parallel? 	mustn't I be paralleling?
mustn't you be paralleling?
mustn't he be paralleling?
mustn't we be paralleling?
mustn't you be paralleling?
mustn't they be paralleling? 	mustn't I have paralleled?
mustn't you have paralleled?
mustn't he have paralleled?
mustn't we have paralleled?
mustn't you have paralleled?
mustn't they have paralleled? 	mustn't I have been paralleling?
mustn't you have been paralleling?
mustn't he have been paralleling?
mustn't we have been paralleling?
mustn't you have been paralleling?
mustn't they have been paralleling?