I could segregate you could segregate she could segregate we could segregate you could segregate they could segregate
V-ing form
I could be segregating you could be segregating she could be segregating we could be segregating you could be segregating they could be segregating
Perfect
I could have segregated you could have segregated she could have segregated we could have segregated you could have segregated they could have segregated
V-ing perfect
I could have been segregating you could have been segregating she could have been segregating we could have been segregating you could have been segregating they could have been segregating
Negation
Simple form
I could not segregate you could not segregate she could not segregate we could not segregate you could not segregate they could not segregate
V-ing form
I could not be segregating you could not be segregating she could not be segregating we could not be segregating you could not be segregating they could not be segregating
Perfect
I could not have segregated you could not have segregated she could not have segregated we could not have segregated you could not have segregated they could not have segregated
V-ing perfect
I could not have been segregating you could not have been segregating she could not have been segregating we could not have been segregating you could not have been segregating they could not have been segregating
Interrogative form
Simple form
could I segregate? could you segregate? could she segregate? could we segregate? could you segregate? could they segregate?
V-ing form
could I be segregating? could you be segregating? could she be segregating? could we be segregating? could you be segregating? could they be segregating?
Perfect
could I have segregated? could you have segregated? could she have segregated? could we have segregated? could you have segregated? could they have segregated?
V-ing perfect
could I have been segregating? could you have been segregating? could she have been segregating? could we have been segregating? could you have been segregating? could they have been segregating?
Interro-negative form
Simple form
could I not segregate? could you not segregate? could she not segregate? could we not segregate? could you not segregate? could they not segregate?
V-ing form
could I not be segregating? could you not be segregating? could she not be segregating? could we not be segregating? could you not be segregating? could they not be segregating?
Perfect
could I not have segregated? could you not have segregated? could she not have segregated? could we not have segregated? could you not have segregated? could they not have segregated?
V-ing perfect
could I not have been segregating? could you not have been segregating? could she not have been segregating? could we not have been segregating? could you not have been segregating? could they not have been segregating?