must scatter
Regular verb: scatter - scattered- scattered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must scatter
you must scatter
he must scatter
we must scatter
you must scatter
they must scatter 	I must be scattering
you must be scattering
he must be scattering
we must be scattering
you must be scattering
they must be scattering	I must have scattered
you must have scattered
he must have scattered
we must have scattered
you must have scattered
they must have scattered	I must have been scattering
you must have been scattering
he must have been scattering
we must have been scattering
you must have been scattering
they must have been scattering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't scatter
you mustn't scatter
he mustn't scatter
we mustn't scatter
you mustn't scatter
they mustn't scatter 	I mustn't be scattering
you mustn't be scattering
he mustn't be scattering
we mustn't be scattering
you mustn't be scattering
they mustn't be scattering	I mustn't have scattered
you mustn't have scattered
he mustn't have scattered
we mustn't have scattered
you mustn't have scattered
they mustn't have scattered	I mustn't have been scattering
you mustn't have been scattering
he mustn't have been scattering
we mustn't have been scattering
you mustn't have been scattering
they mustn't have been scattering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I scatter?
must you scatter?
must he scatter?
must we scatter?
must you scatter?
must they scatter? 	must I be scattering?
must you be scattering?
must he be scattering?
must we be scattering?
must you be scattering?
must they be scattering? 	must I have scattered?
must you have scattered?
must he have scattered?
must we have scattered?
must you have scattered?
must they have scattered? 	must I have been scattering?
must you have been scattering?
must he have been scattering?
must we have been scattering?
must you have been scattering?
must they have been scattering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I scatter?
mustn't you scatter?
mustn't he scatter?
mustn't we scatter?
mustn't you scatter?
mustn't they scatter? 	mustn't I be scattering?
mustn't you be scattering?
mustn't he be scattering?
mustn't we be scattering?
mustn't you be scattering?
mustn't they be scattering? 	mustn't I have scattered?
mustn't you have scattered?
mustn't he have scattered?
mustn't we have scattered?
mustn't you have scattered?
mustn't they have scattered? 	mustn't I have been scattering?
mustn't you have been scattering?
mustn't he have been scattering?
mustn't we have been scattering?
mustn't you have been scattering?
mustn't they have been scattering?