must pursue
Regular verb: pursue - pursued- pursued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pursue
you must pursue
she must pursue
we must pursue
you must pursue
they must pursue 	I must be pursuing
you must be pursuing
she must be pursuing
we must be pursuing
you must be pursuing
they must be pursuing	I must have pursued
you must have pursued
she must have pursued
we must have pursued
you must have pursued
they must have pursued	I must have been pursuing
you must have been pursuing
she must have been pursuing
we must have been pursuing
you must have been pursuing
they must have been pursuing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't pursue
you mustn't pursue
she mustn't pursue
we mustn't pursue
you mustn't pursue
they mustn't pursue 	I mustn't be pursuing
you mustn't be pursuing
she mustn't be pursuing
we mustn't be pursuing
you mustn't be pursuing
they mustn't be pursuing	I mustn't have pursued
you mustn't have pursued
she mustn't have pursued
we mustn't have pursued
you mustn't have pursued
they mustn't have pursued	I mustn't have been pursuing
you mustn't have been pursuing
she mustn't have been pursuing
we mustn't have been pursuing
you mustn't have been pursuing
they mustn't have been pursuing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pursue?
must you pursue?
must she pursue?
must we pursue?
must you pursue?
must they pursue? 	must I be pursuing?
must you be pursuing?
must she be pursuing?
must we be pursuing?
must you be pursuing?
must they be pursuing? 	must I have pursued?
must you have pursued?
must she have pursued?
must we have pursued?
must you have pursued?
must they have pursued? 	must I have been pursuing?
must you have been pursuing?
must she have been pursuing?
must we have been pursuing?
must you have been pursuing?
must they have been pursuing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I pursue?
mustn't you pursue?
mustn't she pursue?
mustn't we pursue?
mustn't you pursue?
mustn't they pursue? 	mustn't I be pursuing?
mustn't you be pursuing?
mustn't she be pursuing?
mustn't we be pursuing?
mustn't you be pursuing?
mustn't they be pursuing? 	mustn't I have pursued?
mustn't you have pursued?
mustn't she have pursued?
mustn't we have pursued?
mustn't you have pursued?
mustn't they have pursued? 	mustn't I have been pursuing?
mustn't you have been pursuing?
mustn't she have been pursuing?
mustn't we have been pursuing?
mustn't you have been pursuing?
mustn't they have been pursuing?