must entertain
Verbo regular: entertain - entertained- entertained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must entertain
you must entertain
he must entertain
we must entertain
you must entertain
they must entertain 	I must be entertaining
you must be entertaining
he must be entertaining
we must be entertaining
you must be entertaining
they must be entertaining	I must have entertained
you must have entertained
he must have entertained
we must have entertained
you must have entertained
they must have entertained	I must have been entertaining
you must have been entertaining
he must have been entertaining
we must have been entertaining
you must have been entertaining
they must have been entertaining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't entertain
you mustn't entertain
he mustn't entertain
we mustn't entertain
you mustn't entertain
they mustn't entertain 	I mustn't be entertaining
you mustn't be entertaining
he mustn't be entertaining
we mustn't be entertaining
you mustn't be entertaining
they mustn't be entertaining	I mustn't have entertained
you mustn't have entertained
he mustn't have entertained
we mustn't have entertained
you mustn't have entertained
they mustn't have entertained	I mustn't have been entertaining
you mustn't have been entertaining
he mustn't have been entertaining
we mustn't have been entertaining
you mustn't have been entertaining
they mustn't have been entertaining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I entertain?
must you entertain?
must he entertain?
must we entertain?
must you entertain?
must they entertain? 	must I be entertaining?
must you be entertaining?
must he be entertaining?
must we be entertaining?
must you be entertaining?
must they be entertaining? 	must I have entertained?
must you have entertained?
must he have entertained?
must we have entertained?
must you have entertained?
must they have entertained? 	must I have been entertaining?
must you have been entertaining?
must he have been entertaining?
must we have been entertaining?
must you have been entertaining?
must they have been entertaining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I entertain?
mustn't you entertain?
mustn't he entertain?
mustn't we entertain?
mustn't you entertain?
mustn't they entertain? 	mustn't I be entertaining?
mustn't you be entertaining?
mustn't he be entertaining?
mustn't we be entertaining?
mustn't you be entertaining?
mustn't they be entertaining? 	mustn't I have entertained?
mustn't you have entertained?
mustn't he have entertained?
mustn't we have entertained?
mustn't you have entertained?
mustn't they have entertained? 	mustn't I have been entertaining?
mustn't you have been entertaining?
mustn't he have been entertaining?
mustn't we have been entertaining?
mustn't you have been entertaining?
mustn't they have been entertaining?