must joy
Verbo regular: joy - joyed- joyed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must joy
you must joy
he must joy
we must joy
you must joy
they must joy 	I must be joying
you must be joying
he must be joying
we must be joying
you must be joying
they must be joying	I must have joyed
you must have joyed
he must have joyed
we must have joyed
you must have joyed
they must have joyed	I must have been joying
you must have been joying
he must have been joying
we must have been joying
you must have been joying
they must have been joying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't joy
you mustn't joy
he mustn't joy
we mustn't joy
you mustn't joy
they mustn't joy 	I mustn't be joying
you mustn't be joying
he mustn't be joying
we mustn't be joying
you mustn't be joying
they mustn't be joying	I mustn't have joyed
you mustn't have joyed
he mustn't have joyed
we mustn't have joyed
you mustn't have joyed
they mustn't have joyed	I mustn't have been joying
you mustn't have been joying
he mustn't have been joying
we mustn't have been joying
you mustn't have been joying
they mustn't have been joying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I joy?
must you joy?
must he joy?
must we joy?
must you joy?
must they joy? 	must I be joying?
must you be joying?
must he be joying?
must we be joying?
must you be joying?
must they be joying? 	must I have joyed?
must you have joyed?
must he have joyed?
must we have joyed?
must you have joyed?
must they have joyed? 	must I have been joying?
must you have been joying?
must he have been joying?
must we have been joying?
must you have been joying?
must they have been joying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I joy?
mustn't you joy?
mustn't he joy?
mustn't we joy?
mustn't you joy?
mustn't they joy? 	mustn't I be joying?
mustn't you be joying?
mustn't he be joying?
mustn't we be joying?
mustn't you be joying?
mustn't they be joying? 	mustn't I have joyed?
mustn't you have joyed?
mustn't he have joyed?
mustn't we have joyed?
mustn't you have joyed?
mustn't they have joyed? 	mustn't I have been joying?
mustn't you have been joying?
mustn't he have been joying?
mustn't we have been joying?
mustn't you have been joying?
mustn't they have been joying?