English verb conjugation
COULD STOKE

Regular verb: stoke - stoked - stoked

Affirmation

Simple form	V-ing form
I could stoke you could stoke he could stoke we could stoke you could stoke they could stoke	I could be stoking you could be stoking he could be stoking we could be stoking you could be stoking they could be stoking
Perfect	V-ing perfect
I could have stoked you could have stoked he could have stoked we could have stoked you could have stoked they could have stoked	I could have been stoking you could have been stoking he could have been stoking we could have been stoking you could have been stoking they could have been stoking

Negation

Simple form	V-ing form
I couldn't stoke you couldn't stoke he couldn't stoke we couldn't stoke you couldn't stoke they couldn't stoke	I couldn't be stoking you couldn't be stoking he couldn't be stoking we couldn't be stoking you couldn't be stoking they couldn't be stoking
Perfect	V-ing perfect
I couldn't have stoked you couldn't have stoked he couldn't have stoked we couldn't have stoked you couldn't have stoked they couldn't have stoked	I couldn't have been stoking you couldn't have been stoking he couldn't have been stoking we couldn't have been stoking you couldn't have been stoking they couldn't have been stoking

Interrogative form

Simple form	V-ing form
could I stoke? could you stoke? could he stoke? could we stoke? could you stoke? could they stoke?	could I be stoking? could you be stoking? could he be stoking? could we be stoking? could you be stoking? could they be stoking?
Perfect	V-ing perfect
could I have stoked? could you have stoked? could he have stoked? could we have stoked? could you have stoked? could they have stoked?	could I have been stoking? could you have been stoking? could he have been stoking? could we have been stoking? could you have been stoking? could they have been stoking?

Interro-negative form

Simple form	V-ing form
couldn't I stoke? couldn't you stoke? couldn't he stoke? couldn't we stoke? couldn't you stoke? couldn't they stoke?	couldn't I be stoking? couldn't you be stoking? couldn't he be stoking? couldn't we be stoking? couldn't you be stoking? couldn't they be stoking?
Perfect	V-ing perfect
couldn't I have stoked? couldn't you have stoked? couldn't he have stoked? couldn't we have stoked? couldn't you have stoked? couldn't they have stoked?	couldn't I have been stoking? couldn't you have been stoking? couldn't he have been stoking? couldn't we have been stoking? couldn't you have been stoking? couldn't they have been stoking?