English verb conjugation
COULD CHOKE

Regular verb: choke - choked - choked

Affirmation

Simple form	V-ing form
I could choke you could choke he could choke we could choke you could choke they could choke	I could be choking you could be choking he 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 he 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 he 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 could not choke you could not choke he could not choke we could not choke you could not choke they could not choke	I could not be choking you could not be choking he could not be choking we could not be choking you could not be choking they could not be choking
Perfect	V-ing perfect
I could not have choked you could not have choked he could not have choked we could not have choked you could not have choked they could not have choked	I could not have been choking you could not have been choking he could not have been choking we could not have been choking you could not have been choking they could not have been choking

Interrogative form

Simple form	V-ing form
could I choke? could you choke? could he choke? could we choke? could you choke? could they choke?	could I be choking? could you be choking? could he 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 he 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 he 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
could I not choke? could you not choke? could he not choke? could we not choke? could you not choke? could they not choke?	could I not be choking? could you not be choking? could he not be choking? could we not be choking? could you not be choking? could they not be choking?
Perfect	V-ing perfect
could I not have choked? could you not have choked? could he not have choked? could we not have choked? could you not have choked? could they not have choked?	could I not have been choking? could you not have been choking? could he not have been choking? could we not have been choking? could you not have been choking? could they not have been choking?