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