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