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 must not ostracise
you must not ostracise
she must not ostracise
we must not ostracise
you must not ostracise
they must not ostracise 	I must not be ostracising
you must not be ostracising
she must not be ostracising
we must not be ostracising
you must not be ostracising
they must not be ostracising	I must not have ostracised
you must not have ostracised
she must not have ostracised
we must not have ostracised
you must not have ostracised
they must not have ostracised	I must not have been ostracising
you must not have been ostracising
she must not have been ostracising
we must not have been ostracising
you must not have been ostracising
they must not 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 	
must I not ostracise?
must you not ostracise?
must she not ostracise?
must we not ostracise?
must you not ostracise?
must they not ostracise? 	must I not be ostracising?
must you not be ostracising?
must she not be ostracising?
must we not be ostracising?
must you not be ostracising?
must they not be ostracising? 	must I not have ostracised?
must you not have ostracised?
must she not have ostracised?
must we not have ostracised?
must you not have ostracised?
must they not have ostracised? 	must I not have been ostracising?
must you not have been ostracising?
must she not have been ostracising?
must we not have been ostracising?
must you not have been ostracising?
must they not have been ostracising?