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