must endure
Regular verb: endure - endured- endured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must endure
you must endure
she must endure
we must endure
you must endure
they must endure 	I must be enduring
you must be enduring
she must be enduring
we must be enduring
you must be enduring
they must be enduring	I must have endured
you must have endured
she must have endured
we must have endured
you must have endured
they must have endured	I must have been enduring
you must have been enduring
she must have been enduring
we must have been enduring
you must have been enduring
they must have been enduring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't endure
you mustn't endure
she mustn't endure
we mustn't endure
you mustn't endure
they mustn't endure 	I mustn't be enduring
you mustn't be enduring
she mustn't be enduring
we mustn't be enduring
you mustn't be enduring
they mustn't be enduring	I mustn't have endured
you mustn't have endured
she mustn't have endured
we mustn't have endured
you mustn't have endured
they mustn't have endured	I mustn't have been enduring
you mustn't have been enduring
she mustn't have been enduring
we mustn't have been enduring
you mustn't have been enduring
they mustn't have been enduring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I endure?
must you endure?
must she endure?
must we endure?
must you endure?
must they endure? 	must I be enduring?
must you be enduring?
must she be enduring?
must we be enduring?
must you be enduring?
must they be enduring? 	must I have endured?
must you have endured?
must she have endured?
must we have endured?
must you have endured?
must they have endured? 	must I have been enduring?
must you have been enduring?
must she have been enduring?
must we have been enduring?
must you have been enduring?
must they have been enduring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I endure?
mustn't you endure?
mustn't she endure?
mustn't we endure?
mustn't you endure?
mustn't they endure? 	mustn't I be enduring?
mustn't you be enduring?
mustn't she be enduring?
mustn't we be enduring?
mustn't you be enduring?
mustn't they be enduring? 	mustn't I have endured?
mustn't you have endured?
mustn't she have endured?
mustn't we have endured?
mustn't you have endured?
mustn't they have endured? 	mustn't I have been enduring?
mustn't you have been enduring?
mustn't she have been enduring?
mustn't we have been enduring?
mustn't you have been enduring?
mustn't they have been enduring?