English verb conjugation
MUST COP

Regular verb: cop - copped - copped

Affirmation

Simple form	V-ing form
I must cop you must cop he must cop we must cop you must cop they must cop	I must be copping you must be copping he must be copping we must be copping you must be copping they must be copping
Perfect	V-ing perfect
I must have copped you must have copped he must have copped we must have copped you must have copped they must have copped	I must have been copping you must have been copping he must have been copping we must have been copping you must have been copping they must have been copping

Negation

Simple form	V-ing form
I mustn't cop you mustn't cop he mustn't cop we mustn't cop you mustn't cop they mustn't cop	I mustn't be copping you mustn't be copping he mustn't be copping we mustn't be copping you mustn't be copping they mustn't be copping
Perfect	V-ing perfect
I mustn't have copped you mustn't have copped he mustn't have copped we mustn't have copped you mustn't have copped they mustn't have copped	I mustn't have been copping you mustn't have been copping he mustn't have been copping we mustn't have been copping you mustn't have been copping they mustn't have been copping

Interrogative form

Simple form	V-ing form
must I cop? must you cop? must he cop? must we cop? must you cop? must they cop?	must I be copping? must you be copping? must he be copping? must we be copping? must you be copping? must they be copping?
Perfect	V-ing perfect
must I have copped? must you have copped? must he have copped? must we have copped? must you have copped? must they have copped?	must I have been copping? must you have been copping? must he have been copping? must we have been copping? must you have been copping? must they have been copping?

Interro-negative form

Simple form	V-ing form
mustn't I cop? mustn't you cop? mustn't he cop? mustn't we cop? mustn't you cop? mustn't they cop?	mustn't I be copping? mustn't you be copping? mustn't he be copping? mustn't we be copping? mustn't you be copping? mustn't they be copping?
Perfect	V-ing perfect
mustn't I have copped? mustn't you have copped? mustn't he have copped? mustn't we have copped? mustn't you have copped? mustn't they have copped?	mustn't I have been copping? mustn't you have been copping? mustn't he have been copping? mustn't we have been copping? mustn't you have been copping? mustn't they have been copping?