must scare
Regular verb: scare - scared- scared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must scare
you must scare
she must scare
we must scare
you must scare
they must scare 	I must be scaring
you must be scaring
she must be scaring
we must be scaring
you must be scaring
they must be scaring	I must have scared
you must have scared
she must have scared
we must have scared
you must have scared
they must have scared	I must have been scaring
you must have been scaring
she must have been scaring
we must have been scaring
you must have been scaring
they must have been scaring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't scare
you mustn't scare
she mustn't scare
we mustn't scare
you mustn't scare
they mustn't scare 	I mustn't be scaring
you mustn't be scaring
she mustn't be scaring
we mustn't be scaring
you mustn't be scaring
they mustn't be scaring	I mustn't have scared
you mustn't have scared
she mustn't have scared
we mustn't have scared
you mustn't have scared
they mustn't have scared	I mustn't have been scaring
you mustn't have been scaring
she mustn't have been scaring
we mustn't have been scaring
you mustn't have been scaring
they mustn't have been scaring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I scare?
must you scare?
must she scare?
must we scare?
must you scare?
must they scare? 	must I be scaring?
must you be scaring?
must she be scaring?
must we be scaring?
must you be scaring?
must they be scaring? 	must I have scared?
must you have scared?
must she have scared?
must we have scared?
must you have scared?
must they have scared? 	must I have been scaring?
must you have been scaring?
must she have been scaring?
must we have been scaring?
must you have been scaring?
must they have been scaring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I scare?
mustn't you scare?
mustn't she scare?
mustn't we scare?
mustn't you scare?
mustn't they scare? 	mustn't I be scaring?
mustn't you be scaring?
mustn't she be scaring?
mustn't we be scaring?
mustn't you be scaring?
mustn't they be scaring? 	mustn't I have scared?
mustn't you have scared?
mustn't she have scared?
mustn't we have scared?
mustn't you have scared?
mustn't they have scared? 	mustn't I have been scaring?
mustn't you have been scaring?
mustn't she have been scaring?
mustn't we have been scaring?
mustn't you have been scaring?
mustn't they have been scaring?