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 couldn't keck you couldn't keck he couldn't keck we couldn't keck you couldn't keck they couldn't keck	I couldn't be kecking you couldn't be kecking he couldn't be kecking we couldn't be kecking you couldn't be kecking they couldn't be kecking
Perfect	V-ing perfect
I couldn't have kecked you couldn't have kecked he couldn't have kecked we couldn't have kecked you couldn't have kecked they couldn't have kecked	I couldn't have been kecking you couldn't have been kecking he couldn't have been kecking we couldn't have been kecking you couldn't have been kecking they couldn't 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
couldn't I keck? couldn't you keck? couldn't he keck? couldn't we keck? couldn't you keck? couldn't they keck?	couldn't I be kecking? couldn't you be kecking? couldn't he be kecking? couldn't we be kecking? couldn't you be kecking? couldn't they be kecking?
Perfect	V-ing perfect
couldn't I have kecked? couldn't you have kecked? couldn't he have kecked? couldn't we have kecked? couldn't you have kecked? couldn't they have kecked?	couldn't I have been kecking? couldn't you have been kecking? couldn't he have been kecking? couldn't we have been kecking? couldn't you have been kecking? couldn't they have been kecking?