must shatter
Regular verb: shatter - shattered- shattered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must shatter
you must shatter
he must shatter
we must shatter
you must shatter
they must shatter 	I must be shattering
you must be shattering
he must be shattering
we must be shattering
you must be shattering
they must be shattering	I must have shattered
you must have shattered
he must have shattered
we must have shattered
you must have shattered
they must have shattered	I must have been shattering
you must have been shattering
he must have been shattering
we must have been shattering
you must have been shattering
they must have been shattering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't shatter
you mustn't shatter
he mustn't shatter
we mustn't shatter
you mustn't shatter
they mustn't shatter 	I mustn't be shattering
you mustn't be shattering
he mustn't be shattering
we mustn't be shattering
you mustn't be shattering
they mustn't be shattering	I mustn't have shattered
you mustn't have shattered
he mustn't have shattered
we mustn't have shattered
you mustn't have shattered
they mustn't have shattered	I mustn't have been shattering
you mustn't have been shattering
he mustn't have been shattering
we mustn't have been shattering
you mustn't have been shattering
they mustn't have been shattering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I shatter?
must you shatter?
must he shatter?
must we shatter?
must you shatter?
must they shatter? 	must I be shattering?
must you be shattering?
must he be shattering?
must we be shattering?
must you be shattering?
must they be shattering? 	must I have shattered?
must you have shattered?
must he have shattered?
must we have shattered?
must you have shattered?
must they have shattered? 	must I have been shattering?
must you have been shattering?
must he have been shattering?
must we have been shattering?
must you have been shattering?
must they have been shattering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I shatter?
mustn't you shatter?
mustn't he shatter?
mustn't we shatter?
mustn't you shatter?
mustn't they shatter? 	mustn't I be shattering?
mustn't you be shattering?
mustn't he be shattering?
mustn't we be shattering?
mustn't you be shattering?
mustn't they be shattering? 	mustn't I have shattered?
mustn't you have shattered?
mustn't he have shattered?
mustn't we have shattered?
mustn't you have shattered?
mustn't they have shattered? 	mustn't I have been shattering?
mustn't you have been shattering?
mustn't he have been shattering?
mustn't we have been shattering?
mustn't you have been shattering?
mustn't they have been shattering?