must crave
Verbo regular: crave - craved- craved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must crave
you must crave
she must crave
we must crave
you must crave
they must crave 	I must be craving
you must be craving
she must be craving
we must be craving
you must be craving
they must be craving	I must have craved
you must have craved
she must have craved
we must have craved
you must have craved
they must have craved	I must have been craving
you must have been craving
she must have been craving
we must have been craving
you must have been craving
they must have been craving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't crave
you mustn't crave
she mustn't crave
we mustn't crave
you mustn't crave
they mustn't crave 	I mustn't be craving
you mustn't be craving
she mustn't be craving
we mustn't be craving
you mustn't be craving
they mustn't be craving	I mustn't have craved
you mustn't have craved
she mustn't have craved
we mustn't have craved
you mustn't have craved
they mustn't have craved	I mustn't have been craving
you mustn't have been craving
she mustn't have been craving
we mustn't have been craving
you mustn't have been craving
they mustn't have been craving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I crave?
must you crave?
must she crave?
must we crave?
must you crave?
must they crave? 	must I be craving?
must you be craving?
must she be craving?
must we be craving?
must you be craving?
must they be craving? 	must I have craved?
must you have craved?
must she have craved?
must we have craved?
must you have craved?
must they have craved? 	must I have been craving?
must you have been craving?
must she have been craving?
must we have been craving?
must you have been craving?
must they have been craving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I crave?
mustn't you crave?
mustn't she crave?
mustn't we crave?
mustn't you crave?
mustn't they crave? 	mustn't I be craving?
mustn't you be craving?
mustn't she be craving?
mustn't we be craving?
mustn't you be craving?
mustn't they be craving? 	mustn't I have craved?
mustn't you have craved?
mustn't she have craved?
mustn't we have craved?
mustn't you have craved?
mustn't they have craved? 	mustn't I have been craving?
mustn't you have been craving?
mustn't she have been craving?
mustn't we have been craving?
mustn't you have been craving?
mustn't they have been craving?