can precook
Regular verb: precook - precooked- precooked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?