must measure
Verbo regular: measure - measured- measured

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must measure
you must measure
he must measure
we must measure
you must measure
they must measure 	I must be measuring
you must be measuring
he must be measuring
we must be measuring
you must be measuring
they must be measuring	I must have measured
you must have measured
he must have measured
we must have measured
you must have measured
they must have measured	I must have been measuring
you must have been measuring
he must have been measuring
we must have been measuring
you must have been measuring
they must have been measuring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't measure
you mustn't measure
he mustn't measure
we mustn't measure
you mustn't measure
they mustn't measure 	I mustn't be measuring
you mustn't be measuring
he mustn't be measuring
we mustn't be measuring
you mustn't be measuring
they mustn't be measuring	I mustn't have measured
you mustn't have measured
he mustn't have measured
we mustn't have measured
you mustn't have measured
they mustn't have measured	I mustn't have been measuring
you mustn't have been measuring
he mustn't have been measuring
we mustn't have been measuring
you mustn't have been measuring
they mustn't have been measuring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I measure?
must you measure?
must he measure?
must we measure?
must you measure?
must they measure? 	must I be measuring?
must you be measuring?
must he be measuring?
must we be measuring?
must you be measuring?
must they be measuring? 	must I have measured?
must you have measured?
must he have measured?
must we have measured?
must you have measured?
must they have measured? 	must I have been measuring?
must you have been measuring?
must he have been measuring?
must we have been measuring?
must you have been measuring?
must they have been measuring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I measure?
mustn't you measure?
mustn't he measure?
mustn't we measure?
mustn't you measure?
mustn't they measure? 	mustn't I be measuring?
mustn't you be measuring?
mustn't he be measuring?
mustn't we be measuring?
mustn't you be measuring?
mustn't they be measuring? 	mustn't I have measured?
mustn't you have measured?
mustn't he have measured?
mustn't we have measured?
mustn't you have measured?
mustn't they have measured? 	mustn't I have been measuring?
mustn't you have been measuring?
mustn't he have been measuring?
mustn't we have been measuring?
mustn't you have been measuring?
mustn't they have been measuring?