must smear
Regular verb: smear - smeared- smeared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must smear
you must smear
she must smear
we must smear
you must smear
they must smear 	I must be smearing
you must be smearing
she must be smearing
we must be smearing
you must be smearing
they must be smearing	I must have smeared
you must have smeared
she must have smeared
we must have smeared
you must have smeared
they must have smeared	I must have been smearing
you must have been smearing
she must have been smearing
we must have been smearing
you must have been smearing
they must have been smearing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't smear
you mustn't smear
she mustn't smear
we mustn't smear
you mustn't smear
they mustn't smear 	I mustn't be smearing
you mustn't be smearing
she mustn't be smearing
we mustn't be smearing
you mustn't be smearing
they mustn't be smearing	I mustn't have smeared
you mustn't have smeared
she mustn't have smeared
we mustn't have smeared
you mustn't have smeared
they mustn't have smeared	I mustn't have been smearing
you mustn't have been smearing
she mustn't have been smearing
we mustn't have been smearing
you mustn't have been smearing
they mustn't have been smearing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I smear?
must you smear?
must she smear?
must we smear?
must you smear?
must they smear? 	must I be smearing?
must you be smearing?
must she be smearing?
must we be smearing?
must you be smearing?
must they be smearing? 	must I have smeared?
must you have smeared?
must she have smeared?
must we have smeared?
must you have smeared?
must they have smeared? 	must I have been smearing?
must you have been smearing?
must she have been smearing?
must we have been smearing?
must you have been smearing?
must they have been smearing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I smear?
mustn't you smear?
mustn't she smear?
mustn't we smear?
mustn't you smear?
mustn't they smear? 	mustn't I be smearing?
mustn't you be smearing?
mustn't she be smearing?
mustn't we be smearing?
mustn't you be smearing?
mustn't they be smearing? 	mustn't I have smeared?
mustn't you have smeared?
mustn't she have smeared?
mustn't we have smeared?
mustn't you have smeared?
mustn't they have smeared? 	mustn't I have been smearing?
mustn't you have been smearing?
mustn't she have been smearing?
mustn't we have been smearing?
mustn't you have been smearing?
mustn't they have been smearing?