must coextend
Verbe régulier : coextend - coextended- coextended

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must coextend
you must coextend
he must coextend
we must coextend
you must coextend
they must coextend 	I must be coextending
you must be coextending
he must be coextending
we must be coextending
you must be coextending
they must be coextending	I must have coextended
you must have coextended
he must have coextended
we must have coextended
you must have coextended
they must have coextended	I must have been coextending
you must have been coextending
he must have been coextending
we must have been coextending
you must have been coextending
they must have been coextending	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't coextend
you mustn't coextend
he mustn't coextend
we mustn't coextend
you mustn't coextend
they mustn't coextend 	I mustn't be coextending
you mustn't be coextending
he mustn't be coextending
we mustn't be coextending
you mustn't be coextending
they mustn't be coextending	I mustn't have coextended
you mustn't have coextended
he mustn't have coextended
we mustn't have coextended
you mustn't have coextended
they mustn't have coextended	I mustn't have been coextending
you mustn't have been coextending
he mustn't have been coextending
we mustn't have been coextending
you mustn't have been coextending
they mustn't have been coextending	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I coextend?
must you coextend?
must he coextend?
must we coextend?
must you coextend?
must they coextend? 	must I be coextending?
must you be coextending?
must he be coextending?
must we be coextending?
must you be coextending?
must they be coextending? 	must I have coextended?
must you have coextended?
must he have coextended?
must we have coextended?
must you have coextended?
must they have coextended? 	must I have been coextending?
must you have been coextending?
must he have been coextending?
must we have been coextending?
must you have been coextending?
must they have been coextending? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I coextend?
mustn't you coextend?
mustn't he coextend?
mustn't we coextend?
mustn't you coextend?
mustn't they coextend? 	mustn't I be coextending?
mustn't you be coextending?
mustn't he be coextending?
mustn't we be coextending?
mustn't you be coextending?
mustn't they be coextending? 	mustn't I have coextended?
mustn't you have coextended?
mustn't he have coextended?
mustn't we have coextended?
mustn't you have coextended?
mustn't they have coextended? 	mustn't I have been coextending?
mustn't you have been coextending?
mustn't he have been coextending?
mustn't we have been coextending?
mustn't you have been coextending?
mustn't they have been coextending?