English verb conjugation
CAN PRECOOK

Regular verb: precook - precooked - precooked

Affirmation

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

Negation

Simple form	V-ing form
I cannot precook you cannot precook she cannot precook we cannot precook you cannot precook they cannot precook	I cannot be precooking you cannot be precooking she cannot be precooking we cannot be precooking you cannot be precooking they cannot be precooking
Perfect	V-ing perfect
I cannot have precooked you cannot have precooked she cannot have precooked we cannot have precooked you cannot have precooked they cannot have precooked	I cannot have been precooking you cannot have been precooking she cannot have been precooking we cannot have been precooking you cannot have been precooking they cannot have been precooking

Interrogative form

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

Interro-negative form

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