must cast
Irregular verb: cast - cast- cast

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cast
you must cast
she must cast
we must cast
you must cast
they must cast 	I must be casting
you must be casting
she must be casting
we must be casting
you must be casting
they must be casting	I must have cast
you must have cast
she must have cast
we must have cast
you must have cast
they must have cast	I must have been casting
you must have been casting
she must have been casting
we must have been casting
you must have been casting
they must have been casting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't cast
you mustn't cast
she mustn't cast
we mustn't cast
you mustn't cast
they mustn't cast 	I mustn't be casting
you mustn't be casting
she mustn't be casting
we mustn't be casting
you mustn't be casting
they mustn't be casting	I mustn't have cast
you mustn't have cast
she mustn't have cast
we mustn't have cast
you mustn't have cast
they mustn't have cast	I mustn't have been casting
you mustn't have been casting
she mustn't have been casting
we mustn't have been casting
you mustn't have been casting
they mustn't have been casting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cast?
must you cast?
must she cast?
must we cast?
must you cast?
must they cast? 	must I be casting?
must you be casting?
must she be casting?
must we be casting?
must you be casting?
must they be casting? 	must I have cast?
must you have cast?
must she have cast?
must we have cast?
must you have cast?
must they have cast? 	must I have been casting?
must you have been casting?
must she have been casting?
must we have been casting?
must you have been casting?
must they have been casting? 	

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