English verb conjugation
COULD PRECOOK

Regular verb: precook - precooked - precooked

Affirmation

Simple form	V-ing form
I could precook you could precook he could precook we could precook you could precook they could precook	I could be precooking you could be precooking he could be precooking we could be precooking you could be precooking they could be precooking
Perfect	V-ing perfect
I could have precooked you could have precooked he could have precooked we could have precooked you could have precooked they could have precooked	I could have been precooking you could have been precooking he could have been precooking we could have been precooking you could have been precooking they could have been precooking

Negation

Simple form	V-ing form
I could not precook you could not precook he could not precook we could not precook you could not precook they could not precook	I could not be precooking you could not be precooking he could not be precooking we could not be precooking you could not be precooking they could not be precooking
Perfect	V-ing perfect
I could not have precooked you could not have precooked he could not have precooked we could not have precooked you could not have precooked they could not have precooked	I could not have been precooking you could not have been precooking he could not have been precooking we could not have been precooking you could not have been precooking they could not have been precooking

Interrogative form

Simple form	V-ing form
could I precook? could you precook? could he precook? could we precook? could you precook? could they precook?	could I be precooking? could you be precooking? could he be precooking? could we be precooking? could you be precooking? could they be precooking?
Perfect	V-ing perfect
could I have precooked? could you have precooked? could he have precooked? could we have precooked? could you have precooked? could they have precooked?	could I have been precooking? could you have been precooking? could he have been precooking? could we have been precooking? could you have been precooking? could they have been precooking?

Interro-negative form

Simple form	V-ing form
could I not precook? could you not precook? could he not precook? could we not precook? could you not precook? could they not precook?	could I not be precooking? could you not be precooking? could he not be precooking? could we not be precooking? could you not be precooking? could they not be precooking?
Perfect	V-ing perfect
could I not have precooked? could you not have precooked? could he not have precooked? could we not have precooked? could you not have precooked? could they not have precooked?	could I not have been precooking? could you not have been precooking? could he not have been precooking? could we not have been precooking? could you not have been precooking? could they not have been precooking?