must cupel
Regular verb: cupel - cupeled- cupeled

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

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

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

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