must customize
Verbo regular: customize - customized- customized

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must customize
you must customize
she must customize
we must customize
you must customize
they must customize 	I must be customizing
you must be customizing
she must be customizing
we must be customizing
you must be customizing
they must be customizing	I must have customized
you must have customized
she must have customized
we must have customized
you must have customized
they must have customized	I must have been customizing
you must have been customizing
she must have been customizing
we must have been customizing
you must have been customizing
they must have been customizing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't customize
you mustn't customize
she mustn't customize
we mustn't customize
you mustn't customize
they mustn't customize 	I mustn't be customizing
you mustn't be customizing
she mustn't be customizing
we mustn't be customizing
you mustn't be customizing
they mustn't be customizing	I mustn't have customized
you mustn't have customized
she mustn't have customized
we mustn't have customized
you mustn't have customized
they mustn't have customized	I mustn't have been customizing
you mustn't have been customizing
she mustn't have been customizing
we mustn't have been customizing
you mustn't have been customizing
they mustn't have been customizing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I customize?
must you customize?
must she customize?
must we customize?
must you customize?
must they customize? 	must I be customizing?
must you be customizing?
must she be customizing?
must we be customizing?
must you be customizing?
must they be customizing? 	must I have customized?
must you have customized?
must she have customized?
must we have customized?
must you have customized?
must they have customized? 	must I have been customizing?
must you have been customizing?
must she have been customizing?
must we have been customizing?
must you have been customizing?
must they have been customizing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I customize?
mustn't you customize?
mustn't she customize?
mustn't we customize?
mustn't you customize?
mustn't they customize? 	mustn't I be customizing?
mustn't you be customizing?
mustn't she be customizing?
mustn't we be customizing?
mustn't you be customizing?
mustn't they be customizing? 	mustn't I have customized?
mustn't you have customized?
mustn't she have customized?
mustn't we have customized?
mustn't you have customized?
mustn't they have customized? 	mustn't I have been customizing?
mustn't you have been customizing?
mustn't she have been customizing?
mustn't we have been customizing?
mustn't you have been customizing?
mustn't they have been customizing?