I can finger you can finger she can finger we can finger you can finger they can finger
V-ing form
I can be fingering you can be fingering she can be fingering we can be fingering you can be fingering they can be fingering
Perfect
I can have fingered you can have fingered she can have fingered we can have fingered you can have fingered they can have fingered
V-ing perfect
I can have been fingering you can have been fingering she can have been fingering we can have been fingering you can have been fingering they can have been fingering
Negation
Simple form
I can't finger you can't finger she can't finger we can't finger you can't finger they can't finger
V-ing form
I can't be fingering you can't be fingering she can't be fingering we can't be fingering you can't be fingering they can't be fingering
Perfect
I can't have fingered you can't have fingered she can't have fingered we can't have fingered you can't have fingered they can't have fingered
V-ing perfect
I can't have been fingering you can't have been fingering she can't have been fingering we can't have been fingering you can't have been fingering they can't have been fingering
Interrogative form
Simple form
can I finger? can you finger? can she finger? can we finger? can you finger? can they finger?
V-ing form
can I be fingering? can you be fingering? can she be fingering? can we be fingering? can you be fingering? can they be fingering?
Perfect
can I have fingered? can you have fingered? can she have fingered? can we have fingered? can you have fingered? can they have fingered?
V-ing perfect
can I have been fingering? can you have been fingering? can she have been fingering? can we have been fingering? can you have been fingering? can they have been fingering?
Interro-negative form
Simple form
can't I finger? can't you finger? can't she finger? can't we finger? can't you finger? can't they finger?
V-ing form
can't I be fingering? can't you be fingering? can't she be fingering? can't we be fingering? can't you be fingering? can't they be fingering?
Perfect
can't I have fingered? can't you have fingered? can't she have fingered? can't we have fingered? can't you have fingered? can't they have fingered?
V-ing perfect
can't I have been fingering? can't you have been fingering? can't she have been fingering? can't we have been fingering? can't you have been fingering? can't they have been fingering?