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