must shave
Irregular verb: shave - shaved- shaven, shaved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must shave
you must shave
she must shave
we must shave
you must shave
they must shave 	I must be shaving
you must be shaving
she must be shaving
we must be shaving
you must be shaving
they must be shaving	I must have shaven, shaved
you must have shaven, shaved
she must have shaven, shaved
we must have shaven, shaved
you must have shaven, shaved
they must have shaven, shaved	I must have been shaving
you must have been shaving
she must have been shaving
we must have been shaving
you must have been shaving
they must have been shaving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't shave
you mustn't shave
she mustn't shave
we mustn't shave
you mustn't shave
they mustn't shave 	I mustn't be shaving
you mustn't be shaving
she mustn't be shaving
we mustn't be shaving
you mustn't be shaving
they mustn't be shaving	I mustn't have shaven, shaved
you mustn't have shaven, shaved
she mustn't have shaven, shaved
we mustn't have shaven, shaved
you mustn't have shaven, shaved
they mustn't have shaven, shaved	I mustn't have been shaving
you mustn't have been shaving
she mustn't have been shaving
we mustn't have been shaving
you mustn't have been shaving
they mustn't have been shaving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I shave?
must you shave?
must she shave?
must we shave?
must you shave?
must they shave? 	must I be shaving?
must you be shaving?
must she be shaving?
must we be shaving?
must you be shaving?
must they be shaving? 	must I have shaven, shaved?
must you have shaven, shaved?
must she have shaven, shaved?
must we have shaven, shaved?
must you have shaven, shaved?
must they have shaven, shaved? 	must I have been shaving?
must you have been shaving?
must she have been shaving?
must we have been shaving?
must you have been shaving?
must they have been shaving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I shave?
mustn't you shave?
mustn't she shave?
mustn't we shave?
mustn't you shave?
mustn't they shave? 	mustn't I be shaving?
mustn't you be shaving?
mustn't she be shaving?
mustn't we be shaving?
mustn't you be shaving?
mustn't they be shaving? 	mustn't I have shaven, shaved?
mustn't you have shaven, shaved?
mustn't she have shaven, shaved?
mustn't we have shaven, shaved?
mustn't you have shaven, shaved?
mustn't they have shaven, shaved? 	mustn't I have been shaving?
mustn't you have been shaving?
mustn't she have been shaving?
mustn't we have been shaving?
mustn't you have been shaving?
mustn't they have been shaving?