must bluster
Regular verb: bluster - blustered- blustered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bluster
you must bluster
he must bluster
we must bluster
you must bluster
they must bluster 	I must be blustering
you must be blustering
he must be blustering
we must be blustering
you must be blustering
they must be blustering	I must have blustered
you must have blustered
he 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
he 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 must not bluster
you must not bluster
he must not bluster
we must not bluster
you must not bluster
they must not bluster 	I must not be blustering
you must not be blustering
he must not be blustering
we must not be blustering
you must not be blustering
they must not be blustering	I must not have blustered
you must not have blustered
he must not have blustered
we must not have blustered
you must not have blustered
they must not have blustered	I must not have been blustering
you must not have been blustering
he must not have been blustering
we must not have been blustering
you must not have been blustering
they must not have been blustering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bluster?
must you bluster?
must he bluster?
must we bluster?
must you bluster?
must they bluster? 	must I be blustering?
must you be blustering?
must he be blustering?
must we be blustering?
must you be blustering?
must they be blustering? 	must I have blustered?
must you have blustered?
must he 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 he 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 	
must I not bluster?
must you not bluster?
must he not bluster?
must we not bluster?
must you not bluster?
must they not bluster? 	must I not be blustering?
must you not be blustering?
must he not be blustering?
must we not be blustering?
must you not be blustering?
must they not be blustering? 	must I not have blustered?
must you not have blustered?
must he not have blustered?
must we not have blustered?
must you not have blustered?
must they not have blustered? 	must I not have been blustering?
must you not have been blustering?
must he not have been blustering?
must we not have been blustering?
must you not have been blustering?
must they not have been blustering?