I could bound you could bound she could bound we could bound you could bound they could bound
V-ing form
I could be bounding you could be bounding she could be bounding we could be bounding you could be bounding they could be bounding
Perfect
I could have bounded you could have bounded she could have bounded we could have bounded you could have bounded they could have bounded
V-ing perfect
I could have been bounding you could have been bounding she could have been bounding we could have been bounding you could have been bounding they could have been bounding
Negation
Simple form
I couldn't bound you couldn't bound she couldn't bound we couldn't bound you couldn't bound they couldn't bound
V-ing form
I couldn't be bounding you couldn't be bounding she couldn't be bounding we couldn't be bounding you couldn't be bounding they couldn't be bounding
Perfect
I couldn't have bounded you couldn't have bounded she couldn't have bounded we couldn't have bounded you couldn't have bounded they couldn't have bounded
V-ing perfect
I couldn't have been bounding you couldn't have been bounding she couldn't have been bounding we couldn't have been bounding you couldn't have been bounding they couldn't have been bounding
Interrogative form
Simple form
could I bound? could you bound? could she bound? could we bound? could you bound? could they bound?
V-ing form
could I be bounding? could you be bounding? could she be bounding? could we be bounding? could you be bounding? could they be bounding?
Perfect
could I have bounded? could you have bounded? could she have bounded? could we have bounded? could you have bounded? could they have bounded?
V-ing perfect
could I have been bounding? could you have been bounding? could she have been bounding? could we have been bounding? could you have been bounding? could they have been bounding?
Interro-negative form
Simple form
couldn't I bound? couldn't you bound? couldn't she bound? couldn't we bound? couldn't you bound? couldn't they bound?
V-ing form
couldn't I be bounding? couldn't you be bounding? couldn't she be bounding? couldn't we be bounding? couldn't you be bounding? couldn't they be bounding?
Perfect
couldn't I have bounded? couldn't you have bounded? couldn't she have bounded? couldn't we have bounded? couldn't you have bounded? couldn't they have bounded?
V-ing perfect
couldn't I have been bounding? couldn't you have been bounding? couldn't she have been bounding? couldn't we have been bounding? couldn't you have been bounding? couldn't they have been bounding?