I could bruit you could bruit she could bruit we could bruit you could bruit they could bruit
V-ing form
I could be bruiting you could be bruiting she could be bruiting we could be bruiting you could be bruiting they could be bruiting
Perfect
I could have bruited you could have bruited she could have bruited we could have bruited you could have bruited they could have bruited
V-ing perfect
I could have been bruiting you could have been bruiting she could have been bruiting we could have been bruiting you could have been bruiting they could have been bruiting
Negation
Simple form
I could not bruit you could not bruit she could not bruit we could not bruit you could not bruit they could not bruit
V-ing form
I could not be bruiting you could not be bruiting she could not be bruiting we could not be bruiting you could not be bruiting they could not be bruiting
Perfect
I could not have bruited you could not have bruited she could not have bruited we could not have bruited you could not have bruited they could not have bruited
V-ing perfect
I could not have been bruiting you could not have been bruiting she could not have been bruiting we could not have been bruiting you could not have been bruiting they could not have been bruiting
Interrogative form
Simple form
could I bruit? could you bruit? could she bruit? could we bruit? could you bruit? could they bruit?
V-ing form
could I be bruiting? could you be bruiting? could she be bruiting? could we be bruiting? could you be bruiting? could they be bruiting?
Perfect
could I have bruited? could you have bruited? could she have bruited? could we have bruited? could you have bruited? could they have bruited?
V-ing perfect
could I have been bruiting? could you have been bruiting? could she have been bruiting? could we have been bruiting? could you have been bruiting? could they have been bruiting?
Interro-negative form
Simple form
could I not bruit? could you not bruit? could she not bruit? could we not bruit? could you not bruit? could they not bruit?
V-ing form
could I not be bruiting? could you not be bruiting? could she not be bruiting? could we not be bruiting? could you not be bruiting? could they not be bruiting?
Perfect
could I not have bruited? could you not have bruited? could she not have bruited? could we not have bruited? could you not have bruited? could they not have bruited?
V-ing perfect
could I not have been bruiting? could you not have been bruiting? could she not have been bruiting? could we not have been bruiting? could you not have been bruiting? could they not have been bruiting?