English verb conjugation
CAN PRECOOK

Regular verb: precook - precooked - precooked

Affirmation

Simple form	V-ing form
I can precook you can precook he can precook we can precook you can precook they can precook	I can be precooking you can be precooking he 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 he 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 he 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 he cannot precook we cannot precook you cannot precook they cannot precook	I cannot be precooking you cannot be precooking he 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 he 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 he 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 he precook? can we precook? can you precook? can they precook?	can I be precooking? can you be precooking? can he 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 he 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 he 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 he 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 he 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 he 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 he not have been precooking? can we not have been precooking? can you not have been precooking? can they not have been precooking?