must subdue
Regular verb: subdue - subdued- subdued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must subdue
you must subdue
she must subdue
we must subdue
you must subdue
they must subdue 	I must be subduing
you must be subduing
she must be subduing
we must be subduing
you must be subduing
they must be subduing	I must have subdued
you must have subdued
she must have subdued
we must have subdued
you must have subdued
they must have subdued	I must have been subduing
you must have been subduing
she must have been subduing
we must have been subduing
you must have been subduing
they must have been subduing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't subdue
you mustn't subdue
she mustn't subdue
we mustn't subdue
you mustn't subdue
they mustn't subdue 	I mustn't be subduing
you mustn't be subduing
she mustn't be subduing
we mustn't be subduing
you mustn't be subduing
they mustn't be subduing	I mustn't have subdued
you mustn't have subdued
she mustn't have subdued
we mustn't have subdued
you mustn't have subdued
they mustn't have subdued	I mustn't have been subduing
you mustn't have been subduing
she mustn't have been subduing
we mustn't have been subduing
you mustn't have been subduing
they mustn't have been subduing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I subdue?
must you subdue?
must she subdue?
must we subdue?
must you subdue?
must they subdue? 	must I be subduing?
must you be subduing?
must she be subduing?
must we be subduing?
must you be subduing?
must they be subduing? 	must I have subdued?
must you have subdued?
must she have subdued?
must we have subdued?
must you have subdued?
must they have subdued? 	must I have been subduing?
must you have been subduing?
must she have been subduing?
must we have been subduing?
must you have been subduing?
must they have been subduing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I subdue?
mustn't you subdue?
mustn't she subdue?
mustn't we subdue?
mustn't you subdue?
mustn't they subdue? 	mustn't I be subduing?
mustn't you be subduing?
mustn't she be subduing?
mustn't we be subduing?
mustn't you be subduing?
mustn't they be subduing? 	mustn't I have subdued?
mustn't you have subdued?
mustn't she have subdued?
mustn't we have subdued?
mustn't you have subdued?
mustn't they have subdued? 	mustn't I have been subduing?
mustn't you have been subduing?
mustn't she have been subduing?
mustn't we have been subduing?
mustn't you have been subduing?
mustn't they have been subduing?