must insure
Verbo regular: insure - insured- insured

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must insure
you must insure
he must insure
we must insure
you must insure
they must insure 	I must be insuring
you must be insuring
he must be insuring
we must be insuring
you must be insuring
they must be insuring	I must have insured
you must have insured
he 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
he must have been insuring
we must have been insuring
you must have been insuring
they must have been insuring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not insure
you must not insure
he must not insure
we must not insure
you must not insure
they must not insure 	I must not be insuring
you must not be insuring
he must not be insuring
we must not be insuring
you must not be insuring
they must not be insuring	I must not have insured
you must not have insured
he must not have insured
we must not have insured
you must not have insured
they must not have insured	I must not have been insuring
you must not have been insuring
he must not have been insuring
we must not have been insuring
you must not have been insuring
they must not have been insuring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I insure?
must you insure?
must he insure?
must we insure?
must you insure?
must they insure? 	must I be insuring?
must you be insuring?
must he be insuring?
must we be insuring?
must you be insuring?
must they be insuring? 	must I have insured?
must you have insured?
must he 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 he have been insuring?
must we have been insuring?
must you have been insuring?
must they have been insuring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not insure?
must you not insure?
must he not insure?
must we not insure?
must you not insure?
must they not insure? 	must I not be insuring?
must you not be insuring?
must he not be insuring?
must we not be insuring?
must you not be insuring?
must they not be insuring? 	must I not have insured?
must you not have insured?
must he not have insured?
must we not have insured?
must you not have insured?
must they not have insured? 	must I not have been insuring?
must you not have been insuring?
must he not have been insuring?
must we not have been insuring?
must you not have been insuring?
must they not have been insuring?