English verb conjugation
CAN POKE

Regular verb: poke - poked - poked

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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