must optimize
Verbo regular: optimize - optimized- optimized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must optimize
you must optimize
he must optimize
we must optimize
you must optimize
they must optimize 	I must be optimizing
you must be optimizing
he must be optimizing
we must be optimizing
you must be optimizing
they must be optimizing	I must have optimized
you must have optimized
he must have optimized
we must have optimized
you must have optimized
they must have optimized	I must have been optimizing
you must have been optimizing
he must have been optimizing
we must have been optimizing
you must have been optimizing
they must have been optimizing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't optimize
you mustn't optimize
he mustn't optimize
we mustn't optimize
you mustn't optimize
they mustn't optimize 	I mustn't be optimizing
you mustn't be optimizing
he mustn't be optimizing
we mustn't be optimizing
you mustn't be optimizing
they mustn't be optimizing	I mustn't have optimized
you mustn't have optimized
he mustn't have optimized
we mustn't have optimized
you mustn't have optimized
they mustn't have optimized	I mustn't have been optimizing
you mustn't have been optimizing
he mustn't have been optimizing
we mustn't have been optimizing
you mustn't have been optimizing
they mustn't have been optimizing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I optimize?
must you optimize?
must he optimize?
must we optimize?
must you optimize?
must they optimize? 	must I be optimizing?
must you be optimizing?
must he be optimizing?
must we be optimizing?
must you be optimizing?
must they be optimizing? 	must I have optimized?
must you have optimized?
must he have optimized?
must we have optimized?
must you have optimized?
must they have optimized? 	must I have been optimizing?
must you have been optimizing?
must he have been optimizing?
must we have been optimizing?
must you have been optimizing?
must they have been optimizing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I optimize?
mustn't you optimize?
mustn't he optimize?
mustn't we optimize?
mustn't you optimize?
mustn't they optimize? 	mustn't I be optimizing?
mustn't you be optimizing?
mustn't he be optimizing?
mustn't we be optimizing?
mustn't you be optimizing?
mustn't they be optimizing? 	mustn't I have optimized?
mustn't you have optimized?
mustn't he have optimized?
mustn't we have optimized?
mustn't you have optimized?
mustn't they have optimized? 	mustn't I have been optimizing?
mustn't you have been optimizing?
mustn't he have been optimizing?
mustn't we have been optimizing?
mustn't you have been optimizing?
mustn't they have been optimizing?