must ostracise
Regular verb: ostracise - ostracised- ostracised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must ostracise
you must ostracise
she must ostracise
we must ostracise
you must ostracise
they must ostracise 	I must be ostracising
you must be ostracising
she must be ostracising
we must be ostracising
you must be ostracising
they must be ostracising	I must have ostracised
you must have ostracised
she must have ostracised
we must have ostracised
you must have ostracised
they must have ostracised	I must have been ostracising
you must have been ostracising
she must have been ostracising
we must have been ostracising
you must have been ostracising
they must have been ostracising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't ostracise
you mustn't ostracise
she mustn't ostracise
we mustn't ostracise
you mustn't ostracise
they mustn't ostracise 	I mustn't be ostracising
you mustn't be ostracising
she mustn't be ostracising
we mustn't be ostracising
you mustn't be ostracising
they mustn't be ostracising	I mustn't have ostracised
you mustn't have ostracised
she mustn't have ostracised
we mustn't have ostracised
you mustn't have ostracised
they mustn't have ostracised	I mustn't have been ostracising
you mustn't have been ostracising
she mustn't have been ostracising
we mustn't have been ostracising
you mustn't have been ostracising
they mustn't have been ostracising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I ostracise?
must you ostracise?
must she ostracise?
must we ostracise?
must you ostracise?
must they ostracise? 	must I be ostracising?
must you be ostracising?
must she be ostracising?
must we be ostracising?
must you be ostracising?
must they be ostracising? 	must I have ostracised?
must you have ostracised?
must she have ostracised?
must we have ostracised?
must you have ostracised?
must they have ostracised? 	must I have been ostracising?
must you have been ostracising?
must she have been ostracising?
must we have been ostracising?
must you have been ostracising?
must they have been ostracising? 	

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