can cupel
Regular verb: cupel - cupeled- cupeled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can cupel
you can cupel
she can cupel
we can cupel
you can cupel
they can cupel 	I can be cupeling
you can be cupeling
she can be cupeling
we can be cupeling
you can be cupeling
they can be cupeling	I can have cupeled
you can have cupeled
she can have cupeled
we can have cupeled
you can have cupeled
they can have cupeled	I can have been cupeling
you can have been cupeling
she can have been cupeling
we can have been cupeling
you can have been cupeling
they can have been cupeling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't cupel
you can't cupel
she can't cupel
we can't cupel
you can't cupel
they can't cupel 	I can't be cupeling
you can't be cupeling
she can't be cupeling
we can't be cupeling
you can't be cupeling
they can't be cupeling	I can't have cupeled
you can't have cupeled
she can't have cupeled
we can't have cupeled
you can't have cupeled
they can't have cupeled	I can't have been cupeling
you can't have been cupeling
she can't have been cupeling
we can't have been cupeling
you can't have been cupeling
they can't have been cupeling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I cupel?
can you cupel?
can she cupel?
can we cupel?
can you cupel?
can they cupel? 	can I be cupeling?
can you be cupeling?
can she be cupeling?
can we be cupeling?
can you be cupeling?
can they be cupeling? 	can I have cupeled?
can you have cupeled?
can she have cupeled?
can we have cupeled?
can you have cupeled?
can they have cupeled? 	can I have been cupeling?
can you have been cupeling?
can she have been cupeling?
can we have been cupeling?
can you have been cupeling?
can they have been cupeling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I cupel?
can't you cupel?
can't she cupel?
can't we cupel?
can't you cupel?
can't they cupel? 	can't I be cupeling?
can't you be cupeling?
can't she be cupeling?
can't we be cupeling?
can't you be cupeling?
can't they be cupeling? 	can't I have cupeled?
can't you have cupeled?
can't she have cupeled?
can't we have cupeled?
can't you have cupeled?
can't they have cupeled? 	can't I have been cupeling?
can't you have been cupeling?
can't she have been cupeling?
can't we have been cupeling?
can't you have been cupeling?
can't they have been cupeling?