I could suicide you could suicide he could suicide we could suicide you could suicide they could suicide
V-ing form
I could be suiciding you could be suiciding he could be suiciding we could be suiciding you could be suiciding they could be suiciding
Perfect
I could have suicided you could have suicided he could have suicided we could have suicided you could have suicided they could have suicided
V-ing perfect
I could have been suiciding you could have been suiciding he could have been suiciding we could have been suiciding you could have been suiciding they could have been suiciding
Negation
Simple form
I could not suicide you could not suicide he could not suicide we could not suicide you could not suicide they could not suicide
V-ing form
I could not be suiciding you could not be suiciding he could not be suiciding we could not be suiciding you could not be suiciding they could not be suiciding
Perfect
I could not have suicided you could not have suicided he could not have suicided we could not have suicided you could not have suicided they could not have suicided
V-ing perfect
I could not have been suiciding you could not have been suiciding he could not have been suiciding we could not have been suiciding you could not have been suiciding they could not have been suiciding
Interrogative form
Simple form
could I suicide? could you suicide? could he suicide? could we suicide? could you suicide? could they suicide?
V-ing form
could I be suiciding? could you be suiciding? could he be suiciding? could we be suiciding? could you be suiciding? could they be suiciding?
Perfect
could I have suicided? could you have suicided? could he have suicided? could we have suicided? could you have suicided? could they have suicided?
V-ing perfect
could I have been suiciding? could you have been suiciding? could he have been suiciding? could we have been suiciding? could you have been suiciding? could they have been suiciding?
Interro-negative form
Simple form
could I not suicide? could you not suicide? could he not suicide? could we not suicide? could you not suicide? could they not suicide?
V-ing form
could I not be suiciding? could you not be suiciding? could he not be suiciding? could we not be suiciding? could you not be suiciding? could they not be suiciding?
Perfect
could I not have suicided? could you not have suicided? could he not have suicided? could we not have suicided? could you not have suicided? could they not have suicided?
V-ing perfect
could I not have been suiciding? could you not have been suiciding? could he not have been suiciding? could we not have been suiciding? could you not have been suiciding? could they not have been suiciding?