must hay
Verbe régulier : hay - hayed- hayed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must hay
you must hay
she must hay
we must hay
you must hay
they must hay 	I must be haying
you must be haying
she must be haying
we must be haying
you must be haying
they must be haying	I must have hayed
you must have hayed
she must have hayed
we must have hayed
you must have hayed
they must have hayed	I must have been haying
you must have been haying
she must have been haying
we must have been haying
you must have been haying
they must have been haying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't hay
you mustn't hay
she mustn't hay
we mustn't hay
you mustn't hay
they mustn't hay 	I mustn't be haying
you mustn't be haying
she mustn't be haying
we mustn't be haying
you mustn't be haying
they mustn't be haying	I mustn't have hayed
you mustn't have hayed
she mustn't have hayed
we mustn't have hayed
you mustn't have hayed
they mustn't have hayed	I mustn't have been haying
you mustn't have been haying
she mustn't have been haying
we mustn't have been haying
you mustn't have been haying
they mustn't have been haying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I hay?
must you hay?
must she hay?
must we hay?
must you hay?
must they hay? 	must I be haying?
must you be haying?
must she be haying?
must we be haying?
must you be haying?
must they be haying? 	must I have hayed?
must you have hayed?
must she have hayed?
must we have hayed?
must you have hayed?
must they have hayed? 	must I have been haying?
must you have been haying?
must she have been haying?
must we have been haying?
must you have been haying?
must they have been haying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I hay?
mustn't you hay?
mustn't she hay?
mustn't we hay?
mustn't you hay?
mustn't they hay? 	mustn't I be haying?
mustn't you be haying?
mustn't she be haying?
mustn't we be haying?
mustn't you be haying?
mustn't they be haying? 	mustn't I have hayed?
mustn't you have hayed?
mustn't she have hayed?
mustn't we have hayed?
mustn't you have hayed?
mustn't they have hayed? 	mustn't I have been haying?
mustn't you have been haying?
mustn't she have been haying?
mustn't we have been haying?
mustn't you have been haying?
mustn't they have been haying?