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