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