can curr
Regular verb: curr - curred- curred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can curr
you can curr
he can curr
we can curr
you can curr
they can curr 	I can be curring
you can be curring
he can be curring
we can be curring
you can be curring
they can be curring	I can have curred
you can have curred
he can have curred
we can have curred
you can have curred
they can have curred	I can have been curring
you can have been curring
he can have been curring
we can have been curring
you can have been curring
they can have been curring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't curr
you can't curr
he can't curr
we can't curr
you can't curr
they can't curr 	I can't be curring
you can't be curring
he can't be curring
we can't be curring
you can't be curring
they can't be curring	I can't have curred
you can't have curred
he can't have curred
we can't have curred
you can't have curred
they can't have curred	I can't have been curring
you can't have been curring
he can't have been curring
we can't have been curring
you can't have been curring
they can't have been curring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I curr?
can you curr?
can he curr?
can we curr?
can you curr?
can they curr? 	can I be curring?
can you be curring?
can he be curring?
can we be curring?
can you be curring?
can they be curring? 	can I have curred?
can you have curred?
can he have curred?
can we have curred?
can you have curred?
can they have curred? 	can I have been curring?
can you have been curring?
can he have been curring?
can we have been curring?
can you have been curring?
can they have been curring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I curr?
can't you curr?
can't he curr?
can't we curr?
can't you curr?
can't they curr? 	can't I be curring?
can't you be curring?
can't he be curring?
can't we be curring?
can't you be curring?
can't they be curring? 	can't I have curred?
can't you have curred?
can't he have curred?
can't we have curred?
can't you have curred?
can't they have curred? 	can't I have been curring?
can't you have been curring?
can't he have been curring?
can't we have been curring?
can't you have been curring?
can't they have been curring?