can stave
Irregular verb: stave - staved, stove- staved, stove

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can stave
you can stave
he can stave
we can stave
you can stave
they can stave 	I can be staving
you can be staving
he can be staving
we can be staving
you can be staving
they can be staving	I can have staved, stove
you can have staved, stove
he can have staved, stove
we can have staved, stove
you can have staved, stove
they can have staved, stove	I can have been staving
you can have been staving
he can have been staving
we can have been staving
you can have been staving
they can have been staving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot stave
you cannot stave
he cannot stave
we cannot stave
you cannot stave
they cannot stave 	I cannot be staving
you cannot be staving
he cannot be staving
we cannot be staving
you cannot be staving
they cannot be staving	I cannot have staved, stove
you cannot have staved, stove
he cannot have staved, stove
we cannot have staved, stove
you cannot have staved, stove
they cannot have staved, stove	I cannot have been staving
you cannot have been staving
he cannot have been staving
we cannot have been staving
you cannot have been staving
they cannot have been staving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I stave?
can you stave?
can he stave?
can we stave?
can you stave?
can they stave? 	can I be staving?
can you be staving?
can he be staving?
can we be staving?
can you be staving?
can they be staving? 	can I have staved, stove?
can you have staved, stove?
can he have staved, stove?
can we have staved, stove?
can you have staved, stove?
can they have staved, stove? 	can I have been staving?
can you have been staving?
can he have been staving?
can we have been staving?
can you have been staving?
can they have been staving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not stave?
can you not stave?
can he not stave?
can we not stave?
can you not stave?
can they not stave? 	can I not be staving?
can you not be staving?
can he not be staving?
can we not be staving?
can you not be staving?
can they not be staving? 	can I not have staved, stove?
can you not have staved, stove?
can he not have staved, stove?
can we not have staved, stove?
can you not have staved, stove?
can they not have staved, stove? 	can I not have been staving?
can you not have been staving?
can he not have been staving?
can we not have been staving?
can you not have been staving?
can they not have been staving?