I could eject you could eject he could eject we could eject you could eject they could eject
V-ing form
I could be ejecting you could be ejecting he could be ejecting we could be ejecting you could be ejecting they could be ejecting
Perfect
I could have ejected you could have ejected he could have ejected we could have ejected you could have ejected they could have ejected
V-ing perfect
I could have been ejecting you could have been ejecting he could have been ejecting we could have been ejecting you could have been ejecting they could have been ejecting
Negation
Simple form
I couldn't eject you couldn't eject he couldn't eject we couldn't eject you couldn't eject they couldn't eject
V-ing form
I couldn't be ejecting you couldn't be ejecting he couldn't be ejecting we couldn't be ejecting you couldn't be ejecting they couldn't be ejecting
Perfect
I couldn't have ejected you couldn't have ejected he couldn't have ejected we couldn't have ejected you couldn't have ejected they couldn't have ejected
V-ing perfect
I couldn't have been ejecting you couldn't have been ejecting he couldn't have been ejecting we couldn't have been ejecting you couldn't have been ejecting they couldn't have been ejecting
Interrogative form
Simple form
could I eject? could you eject? could he eject? could we eject? could you eject? could they eject?
V-ing form
could I be ejecting? could you be ejecting? could he be ejecting? could we be ejecting? could you be ejecting? could they be ejecting?
Perfect
could I have ejected? could you have ejected? could he have ejected? could we have ejected? could you have ejected? could they have ejected?
V-ing perfect
could I have been ejecting? could you have been ejecting? could he have been ejecting? could we have been ejecting? could you have been ejecting? could they have been ejecting?
Interro-negative form
Simple form
couldn't I eject? couldn't you eject? couldn't he eject? couldn't we eject? couldn't you eject? couldn't they eject?
V-ing form
couldn't I be ejecting? couldn't you be ejecting? couldn't he be ejecting? couldn't we be ejecting? couldn't you be ejecting? couldn't they be ejecting?
Perfect
couldn't I have ejected? couldn't you have ejected? couldn't he have ejected? couldn't we have ejected? couldn't you have ejected? couldn't they have ejected?
V-ing perfect
couldn't I have been ejecting? couldn't you have been ejecting? couldn't he have been ejecting? couldn't we have been ejecting? couldn't you have been ejecting? couldn't they have been ejecting?