English verb conjugation
COULD FINGER

Regular verb: finger - fingered - fingered

Affirmation

Simple form	V-ing form
I could finger you could finger he could finger we could finger you could finger they could finger	I could be fingering you could be fingering he could be fingering we could be fingering you could be fingering they could be fingering
Perfect	V-ing perfect
I could have fingered you could have fingered he could have fingered we could have fingered you could have fingered they could have fingered	I could have been fingering you could have been fingering he could have been fingering we could have been fingering you could have been fingering they could have been fingering

Negation

Simple form	V-ing form
I couldn't finger you couldn't finger he couldn't finger we couldn't finger you couldn't finger they couldn't finger	I couldn't be fingering you couldn't be fingering he couldn't be fingering we couldn't be fingering you couldn't be fingering they couldn't be fingering
Perfect	V-ing perfect
I couldn't have fingered you couldn't have fingered he couldn't have fingered we couldn't have fingered you couldn't have fingered they couldn't have fingered	I couldn't have been fingering you couldn't have been fingering he couldn't have been fingering we couldn't have been fingering you couldn't have been fingering they couldn't have been fingering

Interrogative form

Simple form	V-ing form
could I finger? could you finger? could he finger? could we finger? could you finger? could they finger?	could I be fingering? could you be fingering? could he be fingering? could we be fingering? could you be fingering? could they be fingering?
Perfect	V-ing perfect
could I have fingered? could you have fingered? could he have fingered? could we have fingered? could you have fingered? could they have fingered?	could I have been fingering? could you have been fingering? could he have been fingering? could we have been fingering? could you have been fingering? could they have been fingering?

Interro-negative form

Simple form	V-ing form
couldn't I finger? couldn't you finger? couldn't he finger? couldn't we finger? couldn't you finger? couldn't they finger?	couldn't I be fingering? couldn't you be fingering? couldn't he be fingering? couldn't we be fingering? couldn't you be fingering? couldn't they be fingering?
Perfect	V-ing perfect
couldn't I have fingered? couldn't you have fingered? couldn't he have fingered? couldn't we have fingered? couldn't you have fingered? couldn't they have fingered?	couldn't I have been fingering? couldn't you have been fingering? couldn't he have been fingering? couldn't we have been fingering? couldn't you have been fingering? couldn't they have been fingering?