must fear
Verbo regular: fear - feared- feared

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must fear
you must fear
he must fear
we must fear
you must fear
they must fear 	I must be fearing
you must be fearing
he must be fearing
we must be fearing
you must be fearing
they must be fearing	I must have feared
you must have feared
he must have feared
we must have feared
you must have feared
they must have feared	I must have been fearing
you must have been fearing
he must have been fearing
we must have been fearing
you must have been fearing
they must have been fearing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't fear
you mustn't fear
he mustn't fear
we mustn't fear
you mustn't fear
they mustn't fear 	I mustn't be fearing
you mustn't be fearing
he mustn't be fearing
we mustn't be fearing
you mustn't be fearing
they mustn't be fearing	I mustn't have feared
you mustn't have feared
he mustn't have feared
we mustn't have feared
you mustn't have feared
they mustn't have feared	I mustn't have been fearing
you mustn't have been fearing
he mustn't have been fearing
we mustn't have been fearing
you mustn't have been fearing
they mustn't have been fearing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I fear?
must you fear?
must he fear?
must we fear?
must you fear?
must they fear? 	must I be fearing?
must you be fearing?
must he be fearing?
must we be fearing?
must you be fearing?
must they be fearing? 	must I have feared?
must you have feared?
must he have feared?
must we have feared?
must you have feared?
must they have feared? 	must I have been fearing?
must you have been fearing?
must he have been fearing?
must we have been fearing?
must you have been fearing?
must they have been fearing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I fear?
mustn't you fear?
mustn't he fear?
mustn't we fear?
mustn't you fear?
mustn't they fear? 	mustn't I be fearing?
mustn't you be fearing?
mustn't he be fearing?
mustn't we be fearing?
mustn't you be fearing?
mustn't they be fearing? 	mustn't I have feared?
mustn't you have feared?
mustn't he have feared?
mustn't we have feared?
mustn't you have feared?
mustn't they have feared? 	mustn't I have been fearing?
mustn't you have been fearing?
mustn't he have been fearing?
mustn't we have been fearing?
mustn't you have been fearing?
mustn't they have been fearing?