must bluster
Regular verb: bluster - blustered- blustered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bluster
you must bluster
she must bluster
we must bluster
you must bluster
they must bluster 	I must be blustering
you must be blustering
she must be blustering
we must be blustering
you must be blustering
they must be blustering	I must have blustered
you must have blustered
she must have blustered
we must have blustered
you must have blustered
they must have blustered	I must have been blustering
you must have been blustering
she must have been blustering
we must have been blustering
you must have been blustering
they must have been blustering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't bluster
you mustn't bluster
she mustn't bluster
we mustn't bluster
you mustn't bluster
they mustn't bluster 	I mustn't be blustering
you mustn't be blustering
she mustn't be blustering
we mustn't be blustering
you mustn't be blustering
they mustn't be blustering	I mustn't have blustered
you mustn't have blustered
she mustn't have blustered
we mustn't have blustered
you mustn't have blustered
they mustn't have blustered	I mustn't have been blustering
you mustn't have been blustering
she mustn't have been blustering
we mustn't have been blustering
you mustn't have been blustering
they mustn't have been blustering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bluster?
must you bluster?
must she bluster?
must we bluster?
must you bluster?
must they bluster? 	must I be blustering?
must you be blustering?
must she be blustering?
must we be blustering?
must you be blustering?
must they be blustering? 	must I have blustered?
must you have blustered?
must she have blustered?
must we have blustered?
must you have blustered?
must they have blustered? 	must I have been blustering?
must you have been blustering?
must she have been blustering?
must we have been blustering?
must you have been blustering?
must they have been blustering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I bluster?
mustn't you bluster?
mustn't she bluster?
mustn't we bluster?
mustn't you bluster?
mustn't they bluster? 	mustn't I be blustering?
mustn't you be blustering?
mustn't she be blustering?
mustn't we be blustering?
mustn't you be blustering?
mustn't they be blustering? 	mustn't I have blustered?
mustn't you have blustered?
mustn't she have blustered?
mustn't we have blustered?
mustn't you have blustered?
mustn't they have blustered? 	mustn't I have been blustering?
mustn't you have been blustering?
mustn't she have been blustering?
mustn't we have been blustering?
mustn't you have been blustering?
mustn't they have been blustering?