English verb conjugation
COULD CHOKE

Regular verb: choke - choked - choked

Affirmation

Simple form	V-ing form
I could choke you could choke she could choke we could choke you could choke they could choke	I could be choking you could be choking she could be choking we could be choking you could be choking they could be choking
Perfect	V-ing perfect
I could have choked you could have choked she could have choked we could have choked you could have choked they could have choked	I could have been choking you could have been choking she could have been choking we could have been choking you could have been choking they could have been choking

Negation

Simple form	V-ing form
I couldn't choke you couldn't choke she couldn't choke we couldn't choke you couldn't choke they couldn't choke	I couldn't be choking you couldn't be choking she couldn't be choking we couldn't be choking you couldn't be choking they couldn't be choking
Perfect	V-ing perfect
I couldn't have choked you couldn't have choked she couldn't have choked we couldn't have choked you couldn't have choked they couldn't have choked	I couldn't have been choking you couldn't have been choking she couldn't have been choking we couldn't have been choking you couldn't have been choking they couldn't have been choking

Interrogative form

Simple form	V-ing form
could I choke? could you choke? could she choke? could we choke? could you choke? could they choke?	could I be choking? could you be choking? could she be choking? could we be choking? could you be choking? could they be choking?
Perfect	V-ing perfect
could I have choked? could you have choked? could she have choked? could we have choked? could you have choked? could they have choked?	could I have been choking? could you have been choking? could she have been choking? could we have been choking? could you have been choking? could they have been choking?

Interro-negative form

Simple form	V-ing form
couldn't I choke? couldn't you choke? couldn't she choke? couldn't we choke? couldn't you choke? couldn't they choke?	couldn't I be choking? couldn't you be choking? couldn't she be choking? couldn't we be choking? couldn't you be choking? couldn't they be choking?
Perfect	V-ing perfect
couldn't I have choked? couldn't you have choked? couldn't she have choked? couldn't we have choked? couldn't you have choked? couldn't they have choked?	couldn't I have been choking? couldn't you have been choking? couldn't she have been choking? couldn't we have been choking? couldn't you have been choking? couldn't they have been choking?