I could segment you could segment she could segment we could segment you could segment they could segment
V-ing form
I could be segmenting you could be segmenting she could be segmenting we could be segmenting you could be segmenting they could be segmenting
Perfect
I could have segmented you could have segmented she could have segmented we could have segmented you could have segmented they could have segmented
V-ing perfect
I could have been segmenting you could have been segmenting she could have been segmenting we could have been segmenting you could have been segmenting they could have been segmenting
Negation
Simple form
I could not segment you could not segment she could not segment we could not segment you could not segment they could not segment
V-ing form
I could not be segmenting you could not be segmenting she could not be segmenting we could not be segmenting you could not be segmenting they could not be segmenting
Perfect
I could not have segmented you could not have segmented she could not have segmented we could not have segmented you could not have segmented they could not have segmented
V-ing perfect
I could not have been segmenting you could not have been segmenting she could not have been segmenting we could not have been segmenting you could not have been segmenting they could not have been segmenting
Interrogative form
Simple form
could I segment? could you segment? could she segment? could we segment? could you segment? could they segment?
V-ing form
could I be segmenting? could you be segmenting? could she be segmenting? could we be segmenting? could you be segmenting? could they be segmenting?
Perfect
could I have segmented? could you have segmented? could she have segmented? could we have segmented? could you have segmented? could they have segmented?
V-ing perfect
could I have been segmenting? could you have been segmenting? could she have been segmenting? could we have been segmenting? could you have been segmenting? could they have been segmenting?
Interro-negative form
Simple form
could I not segment? could you not segment? could she not segment? could we not segment? could you not segment? could they not segment?
V-ing form
could I not be segmenting? could you not be segmenting? could she not be segmenting? could we not be segmenting? could you not be segmenting? could they not be segmenting?
Perfect
could I not have segmented? could you not have segmented? could she not have segmented? could we not have segmented? could you not have segmented? could they not have segmented?
V-ing perfect
could I not have been segmenting? could you not have been segmenting? could she not have been segmenting? could we not have been segmenting? could you not have been segmenting? could they not have been segmenting?