English verb conjugation
COULD KECK

Regular verb: keck - kecked - kecked

Affirmation

Simple form	V-ing form
I could keck you could keck he could keck we could keck you could keck they could keck	I could be kecking you could be kecking he could be kecking we could be kecking you could be kecking they could be kecking
Perfect	V-ing perfect
I could have kecked you could have kecked he could have kecked we could have kecked you could have kecked they could have kecked	I could have been kecking you could have been kecking he could have been kecking we could have been kecking you could have been kecking they could have been kecking

Negation

Simple form	V-ing form
I could not keck you could not keck he could not keck we could not keck you could not keck they could not keck	I could not be kecking you could not be kecking he could not be kecking we could not be kecking you could not be kecking they could not be kecking
Perfect	V-ing perfect
I could not have kecked you could not have kecked he could not have kecked we could not have kecked you could not have kecked they could not have kecked	I could not have been kecking you could not have been kecking he could not have been kecking we could not have been kecking you could not have been kecking they could not have been kecking

Interrogative form

Simple form	V-ing form
could I keck? could you keck? could he keck? could we keck? could you keck? could they keck?	could I be kecking? could you be kecking? could he be kecking? could we be kecking? could you be kecking? could they be kecking?
Perfect	V-ing perfect
could I have kecked? could you have kecked? could he have kecked? could we have kecked? could you have kecked? could they have kecked?	could I have been kecking? could you have been kecking? could he have been kecking? could we have been kecking? could you have been kecking? could they have been kecking?

Interro-negative form

Simple form	V-ing form
could I not keck? could you not keck? could he not keck? could we not keck? could you not keck? could they not keck?	could I not be kecking? could you not be kecking? could he not be kecking? could we not be kecking? could you not be kecking? could they not be kecking?
Perfect	V-ing perfect
could I not have kecked? could you not have kecked? could he not have kecked? could we not have kecked? could you not have kecked? could they not have kecked?	could I not have been kecking? could you not have been kecking? could he not have been kecking? could we not have been kecking? could you not have been kecking? could they not have been kecking?