can sheaf
Regular verb: sheaf - sheafed- sheafed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sheaf
you can sheaf
she can sheaf
we can sheaf
you can sheaf
they can sheaf 	I can be sheafing
you can be sheafing
she can be sheafing
we can be sheafing
you can be sheafing
they can be sheafing	I can have sheafed
you can have sheafed
she can have sheafed
we can have sheafed
you can have sheafed
they can have sheafed	I can have been sheafing
you can have been sheafing
she can have been sheafing
we can have been sheafing
you can have been sheafing
they can have been sheafing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't sheaf
you can't sheaf
she can't sheaf
we can't sheaf
you can't sheaf
they can't sheaf 	I can't be sheafing
you can't be sheafing
she can't be sheafing
we can't be sheafing
you can't be sheafing
they can't be sheafing	I can't have sheafed
you can't have sheafed
she can't have sheafed
we can't have sheafed
you can't have sheafed
they can't have sheafed	I can't have been sheafing
you can't have been sheafing
she can't have been sheafing
we can't have been sheafing
you can't have been sheafing
they can't have been sheafing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sheaf?
can you sheaf?
can she sheaf?
can we sheaf?
can you sheaf?
can they sheaf? 	can I be sheafing?
can you be sheafing?
can she be sheafing?
can we be sheafing?
can you be sheafing?
can they be sheafing? 	can I have sheafed?
can you have sheafed?
can she have sheafed?
can we have sheafed?
can you have sheafed?
can they have sheafed? 	can I have been sheafing?
can you have been sheafing?
can she have been sheafing?
can we have been sheafing?
can you have been sheafing?
can they have been sheafing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I sheaf?
can't you sheaf?
can't she sheaf?
can't we sheaf?
can't you sheaf?
can't they sheaf? 	can't I be sheafing?
can't you be sheafing?
can't she be sheafing?
can't we be sheafing?
can't you be sheafing?
can't they be sheafing? 	can't I have sheafed?
can't you have sheafed?
can't she have sheafed?
can't we have sheafed?
can't you have sheafed?
can't they have sheafed? 	can't I have been sheafing?
can't you have been sheafing?
can't she have been sheafing?
can't we have been sheafing?
can't you have been sheafing?
can't they have been sheafing?