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