English verb conjugation
COULD POKE

Regular verb: poke - poked - poked

Affirmation

Simple form	V-ing form
I could poke you could poke he could poke we could poke you could poke they could poke	I could be poking you could be poking he could be poking we could be poking you could be poking they could be poking
Perfect	V-ing perfect
I could have poked you could have poked he could have poked we could have poked you could have poked they could have poked	I could have been poking you could have been poking he could have been poking we could have been poking you could have been poking they could have been poking

Negation

Simple form	V-ing form
I couldn't poke you couldn't poke he couldn't poke we couldn't poke you couldn't poke they couldn't poke	I couldn't be poking you couldn't be poking he couldn't be poking we couldn't be poking you couldn't be poking they couldn't be poking
Perfect	V-ing perfect
I couldn't have poked you couldn't have poked he couldn't have poked we couldn't have poked you couldn't have poked they couldn't have poked	I couldn't have been poking you couldn't have been poking he couldn't have been poking we couldn't have been poking you couldn't have been poking they couldn't have been poking

Interrogative form

Simple form	V-ing form
could I poke? could you poke? could he poke? could we poke? could you poke? could they poke?	could I be poking? could you be poking? could he be poking? could we be poking? could you be poking? could they be poking?
Perfect	V-ing perfect
could I have poked? could you have poked? could he have poked? could we have poked? could you have poked? could they have poked?	could I have been poking? could you have been poking? could he have been poking? could we have been poking? could you have been poking? could they have been poking?

Interro-negative form

Simple form	V-ing form
couldn't I poke? couldn't you poke? couldn't he poke? couldn't we poke? couldn't you poke? couldn't they poke?	couldn't I be poking? couldn't you be poking? couldn't he be poking? couldn't we be poking? couldn't you be poking? couldn't they be poking?
Perfect	V-ing perfect
couldn't I have poked? couldn't you have poked? couldn't he have poked? couldn't we have poked? couldn't you have poked? couldn't they have poked?	couldn't I have been poking? couldn't you have been poking? couldn't he have been poking? couldn't we have been poking? couldn't you have been poking? couldn't they have been poking?