must smack
Regular verb: smack - smacked- smacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must smack
you must smack
she must smack
we must smack
you must smack
they must smack 	I must be smacking
you must be smacking
she must be smacking
we must be smacking
you must be smacking
they must be smacking	I must have smacked
you must have smacked
she must have smacked
we must have smacked
you must have smacked
they must have smacked	I must have been smacking
you must have been smacking
she must have been smacking
we must have been smacking
you must have been smacking
they must have been smacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't smack
you mustn't smack
she mustn't smack
we mustn't smack
you mustn't smack
they mustn't smack 	I mustn't be smacking
you mustn't be smacking
she mustn't be smacking
we mustn't be smacking
you mustn't be smacking
they mustn't be smacking	I mustn't have smacked
you mustn't have smacked
she mustn't have smacked
we mustn't have smacked
you mustn't have smacked
they mustn't have smacked	I mustn't have been smacking
you mustn't have been smacking
she mustn't have been smacking
we mustn't have been smacking
you mustn't have been smacking
they mustn't have been smacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I smack?
must you smack?
must she smack?
must we smack?
must you smack?
must they smack? 	must I be smacking?
must you be smacking?
must she be smacking?
must we be smacking?
must you be smacking?
must they be smacking? 	must I have smacked?
must you have smacked?
must she have smacked?
must we have smacked?
must you have smacked?
must they have smacked? 	must I have been smacking?
must you have been smacking?
must she have been smacking?
must we have been smacking?
must you have been smacking?
must they have been smacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I smack?
mustn't you smack?
mustn't she smack?
mustn't we smack?
mustn't you smack?
mustn't they smack? 	mustn't I be smacking?
mustn't you be smacking?
mustn't she be smacking?
mustn't we be smacking?
mustn't you be smacking?
mustn't they be smacking? 	mustn't I have smacked?
mustn't you have smacked?
mustn't she have smacked?
mustn't we have smacked?
mustn't you have smacked?
mustn't they have smacked? 	mustn't I have been smacking?
mustn't you have been smacking?
mustn't she have been smacking?
mustn't we have been smacking?
mustn't you have been smacking?
mustn't they have been smacking?