must triumph
Regular verb: triumph - triumphed- triumphed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must triumph
you must triumph
he must triumph
we must triumph
you must triumph
they must triumph 	I must be triumphing
you must be triumphing
he must be triumphing
we must be triumphing
you must be triumphing
they must be triumphing	I must have triumphed
you must have triumphed
he must have triumphed
we must have triumphed
you must have triumphed
they must have triumphed	I must have been triumphing
you must have been triumphing
he must have been triumphing
we must have been triumphing
you must have been triumphing
they must have been triumphing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't triumph
you mustn't triumph
he mustn't triumph
we mustn't triumph
you mustn't triumph
they mustn't triumph 	I mustn't be triumphing
you mustn't be triumphing
he mustn't be triumphing
we mustn't be triumphing
you mustn't be triumphing
they mustn't be triumphing	I mustn't have triumphed
you mustn't have triumphed
he mustn't have triumphed
we mustn't have triumphed
you mustn't have triumphed
they mustn't have triumphed	I mustn't have been triumphing
you mustn't have been triumphing
he mustn't have been triumphing
we mustn't have been triumphing
you mustn't have been triumphing
they mustn't have been triumphing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I triumph?
must you triumph?
must he triumph?
must we triumph?
must you triumph?
must they triumph? 	must I be triumphing?
must you be triumphing?
must he be triumphing?
must we be triumphing?
must you be triumphing?
must they be triumphing? 	must I have triumphed?
must you have triumphed?
must he have triumphed?
must we have triumphed?
must you have triumphed?
must they have triumphed? 	must I have been triumphing?
must you have been triumphing?
must he have been triumphing?
must we have been triumphing?
must you have been triumphing?
must they have been triumphing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I triumph?
mustn't you triumph?
mustn't he triumph?
mustn't we triumph?
mustn't you triumph?
mustn't they triumph? 	mustn't I be triumphing?
mustn't you be triumphing?
mustn't he be triumphing?
mustn't we be triumphing?
mustn't you be triumphing?
mustn't they be triumphing? 	mustn't I have triumphed?
mustn't you have triumphed?
mustn't he have triumphed?
mustn't we have triumphed?
mustn't you have triumphed?
mustn't they have triumphed? 	mustn't I have been triumphing?
mustn't you have been triumphing?
mustn't he have been triumphing?
mustn't we have been triumphing?
mustn't you have been triumphing?
mustn't they have been triumphing?