must slap
Regular verb: slap - slapped- slapped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slap
you must slap
he must slap
we must slap
you must slap
they must slap 	I must be slapping
you must be slapping
he must be slapping
we must be slapping
you must be slapping
they must be slapping	I must have slapped
you must have slapped
he must have slapped
we must have slapped
you must have slapped
they must have slapped	I must have been slapping
you must have been slapping
he must have been slapping
we must have been slapping
you must have been slapping
they must have been slapping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't slap
you mustn't slap
he mustn't slap
we mustn't slap
you mustn't slap
they mustn't slap 	I mustn't be slapping
you mustn't be slapping
he mustn't be slapping
we mustn't be slapping
you mustn't be slapping
they mustn't be slapping	I mustn't have slapped
you mustn't have slapped
he mustn't have slapped
we mustn't have slapped
you mustn't have slapped
they mustn't have slapped	I mustn't have been slapping
you mustn't have been slapping
he mustn't have been slapping
we mustn't have been slapping
you mustn't have been slapping
they mustn't have been slapping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slap?
must you slap?
must he slap?
must we slap?
must you slap?
must they slap? 	must I be slapping?
must you be slapping?
must he be slapping?
must we be slapping?
must you be slapping?
must they be slapping? 	must I have slapped?
must you have slapped?
must he have slapped?
must we have slapped?
must you have slapped?
must they have slapped? 	must I have been slapping?
must you have been slapping?
must he have been slapping?
must we have been slapping?
must you have been slapping?
must they have been slapping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I slap?
mustn't you slap?
mustn't he slap?
mustn't we slap?
mustn't you slap?
mustn't they slap? 	mustn't I be slapping?
mustn't you be slapping?
mustn't he be slapping?
mustn't we be slapping?
mustn't you be slapping?
mustn't they be slapping? 	mustn't I have slapped?
mustn't you have slapped?
mustn't he have slapped?
mustn't we have slapped?
mustn't you have slapped?
mustn't they have slapped? 	mustn't I have been slapping?
mustn't you have been slapping?
mustn't he have been slapping?
mustn't we have been slapping?
mustn't you have been slapping?
mustn't they have been slapping?