must insure
Regular verb: insure - insured- insured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must insure
you must insure
she must insure
we must insure
you must insure
they must insure 	I must be insuring
you must be insuring
she must be insuring
we must be insuring
you must be insuring
they must be insuring	I must have insured
you must have insured
she must have insured
we must have insured
you must have insured
they must have insured	I must have been insuring
you must have been insuring
she must have been insuring
we must have been insuring
you must have been insuring
they must have been insuring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't insure
you mustn't insure
she mustn't insure
we mustn't insure
you mustn't insure
they mustn't insure 	I mustn't be insuring
you mustn't be insuring
she mustn't be insuring
we mustn't be insuring
you mustn't be insuring
they mustn't be insuring	I mustn't have insured
you mustn't have insured
she mustn't have insured
we mustn't have insured
you mustn't have insured
they mustn't have insured	I mustn't have been insuring
you mustn't have been insuring
she mustn't have been insuring
we mustn't have been insuring
you mustn't have been insuring
they mustn't have been insuring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I insure?
must you insure?
must she insure?
must we insure?
must you insure?
must they insure? 	must I be insuring?
must you be insuring?
must she be insuring?
must we be insuring?
must you be insuring?
must they be insuring? 	must I have insured?
must you have insured?
must she have insured?
must we have insured?
must you have insured?
must they have insured? 	must I have been insuring?
must you have been insuring?
must she have been insuring?
must we have been insuring?
must you have been insuring?
must they have been insuring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I insure?
mustn't you insure?
mustn't she insure?
mustn't we insure?
mustn't you insure?
mustn't they insure? 	mustn't I be insuring?
mustn't you be insuring?
mustn't she be insuring?
mustn't we be insuring?
mustn't you be insuring?
mustn't they be insuring? 	mustn't I have insured?
mustn't you have insured?
mustn't she have insured?
mustn't we have insured?
mustn't you have insured?
mustn't they have insured? 	mustn't I have been insuring?
mustn't you have been insuring?
mustn't she have been insuring?
mustn't we have been insuring?
mustn't you have been insuring?
mustn't they have been insuring?