can precook
Regular verb: precook - precooked- precooked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I can't precook
you can't precook
he can't precook
we can't precook
you can't precook
they can't precook 	I can't be precooking
you can't be precooking
he can't be precooking
we can't be precooking
you can't be precooking
they can't be precooking	I can't have precooked
you can't have precooked
he can't have precooked
we can't have precooked
you can't have precooked
they can't have precooked	I can't have been precooking
you can't have been precooking
he can't have been precooking
we can't have been precooking
you can't have been precooking
they can't have been precooking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
can't I precook?
can't you precook?
can't he precook?
can't we precook?
can't you precook?
can't they precook? 	can't I be precooking?
can't you be precooking?
can't he be precooking?
can't we be precooking?
can't you be precooking?
can't they be precooking? 	can't I have precooked?
can't you have precooked?
can't he have precooked?
can't we have precooked?
can't you have precooked?
can't they have precooked? 	can't I have been precooking?
can't you have been precooking?
can't he have been precooking?
can't we have been precooking?
can't you have been precooking?
can't they have been precooking?