must outsing
Verbo irregular: outsing - outsang- outsung

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must outsing
you must outsing
he must outsing
we must outsing
you must outsing
they must outsing 	I must be outsinging
you must be outsinging
he must be outsinging
we must be outsinging
you must be outsinging
they must be outsinging	I must have outsung
you must have outsung
he must have outsung
we must have outsung
you must have outsung
they must have outsung	I must have been outsinging
you must have been outsinging
he must have been outsinging
we must have been outsinging
you must have been outsinging
they must have been outsinging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't outsing
you mustn't outsing
he mustn't outsing
we mustn't outsing
you mustn't outsing
they mustn't outsing 	I mustn't be outsinging
you mustn't be outsinging
he mustn't be outsinging
we mustn't be outsinging
you mustn't be outsinging
they mustn't be outsinging	I mustn't have outsung
you mustn't have outsung
he mustn't have outsung
we mustn't have outsung
you mustn't have outsung
they mustn't have outsung	I mustn't have been outsinging
you mustn't have been outsinging
he mustn't have been outsinging
we mustn't have been outsinging
you mustn't have been outsinging
they mustn't have been outsinging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I outsing?
must you outsing?
must he outsing?
must we outsing?
must you outsing?
must they outsing? 	must I be outsinging?
must you be outsinging?
must he be outsinging?
must we be outsinging?
must you be outsinging?
must they be outsinging? 	must I have outsung?
must you have outsung?
must he have outsung?
must we have outsung?
must you have outsung?
must they have outsung? 	must I have been outsinging?
must you have been outsinging?
must he have been outsinging?
must we have been outsinging?
must you have been outsinging?
must they have been outsinging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I outsing?
mustn't you outsing?
mustn't he outsing?
mustn't we outsing?
mustn't you outsing?
mustn't they outsing? 	mustn't I be outsinging?
mustn't you be outsinging?
mustn't he be outsinging?
mustn't we be outsinging?
mustn't you be outsinging?
mustn't they be outsinging? 	mustn't I have outsung?
mustn't you have outsung?
mustn't he have outsung?
mustn't we have outsung?
mustn't you have outsung?
mustn't they have outsung? 	mustn't I have been outsinging?
mustn't you have been outsinging?
mustn't he have been outsinging?
mustn't we have been outsinging?
mustn't you have been outsinging?
mustn't they have been outsinging?