must rule
Regular verb: rule - ruled- ruled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must rule
you must rule
she must rule
we must rule
you must rule
they must rule 	I must be ruling
you must be ruling
she must be ruling
we must be ruling
you must be ruling
they must be ruling	I must have ruled
you must have ruled
she must have ruled
we must have ruled
you must have ruled
they must have ruled	I must have been ruling
you must have been ruling
she must have been ruling
we must have been ruling
you must have been ruling
they must have been ruling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't rule
you mustn't rule
she mustn't rule
we mustn't rule
you mustn't rule
they mustn't rule 	I mustn't be ruling
you mustn't be ruling
she mustn't be ruling
we mustn't be ruling
you mustn't be ruling
they mustn't be ruling	I mustn't have ruled
you mustn't have ruled
she mustn't have ruled
we mustn't have ruled
you mustn't have ruled
they mustn't have ruled	I mustn't have been ruling
you mustn't have been ruling
she mustn't have been ruling
we mustn't have been ruling
you mustn't have been ruling
they mustn't have been ruling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I rule?
must you rule?
must she rule?
must we rule?
must you rule?
must they rule? 	must I be ruling?
must you be ruling?
must she be ruling?
must we be ruling?
must you be ruling?
must they be ruling? 	must I have ruled?
must you have ruled?
must she have ruled?
must we have ruled?
must you have ruled?
must they have ruled? 	must I have been ruling?
must you have been ruling?
must she have been ruling?
must we have been ruling?
must you have been ruling?
must they have been ruling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I rule?
mustn't you rule?
mustn't she rule?
mustn't we rule?
mustn't you rule?
mustn't they rule? 	mustn't I be ruling?
mustn't you be ruling?
mustn't she be ruling?
mustn't we be ruling?
mustn't you be ruling?
mustn't they be ruling? 	mustn't I have ruled?
mustn't you have ruled?
mustn't she have ruled?
mustn't we have ruled?
mustn't you have ruled?
mustn't they have ruled? 	mustn't I have been ruling?
mustn't you have been ruling?
mustn't she have been ruling?
mustn't we have been ruling?
mustn't you have been ruling?
mustn't they have been ruling?