could ostracise
Regular verb: ostracise - ostracised- ostracised

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not ostracise
you could not ostracise
she could not ostracise
we could not ostracise
you could not ostracise
they could not ostracise 	I could not be ostracising
you could not be ostracising
she could not be ostracising
we could not be ostracising
you could not be ostracising
they could not be ostracising	I could not have ostracised
you could not have ostracised
she could not have ostracised
we could not have ostracised
you could not have ostracised
they could not have ostracised	I could not have been ostracising
you could not have been ostracising
she could not have been ostracising
we could not have been ostracising
you could not have been ostracising
they could not have been ostracising	

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

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