must lubricate
Verbo regular: lubricate - lubricated- lubricated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must lubricate
you must lubricate
he must lubricate
we must lubricate
you must lubricate
they must lubricate 	I must be lubricating
you must be lubricating
he must be lubricating
we must be lubricating
you must be lubricating
they must be lubricating	I must have lubricated
you must have lubricated
he must have lubricated
we must have lubricated
you must have lubricated
they must have lubricated	I must have been lubricating
you must have been lubricating
he must have been lubricating
we must have been lubricating
you must have been lubricating
they must have been lubricating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't lubricate
you mustn't lubricate
he mustn't lubricate
we mustn't lubricate
you mustn't lubricate
they mustn't lubricate 	I mustn't be lubricating
you mustn't be lubricating
he mustn't be lubricating
we mustn't be lubricating
you mustn't be lubricating
they mustn't be lubricating	I mustn't have lubricated
you mustn't have lubricated
he mustn't have lubricated
we mustn't have lubricated
you mustn't have lubricated
they mustn't have lubricated	I mustn't have been lubricating
you mustn't have been lubricating
he mustn't have been lubricating
we mustn't have been lubricating
you mustn't have been lubricating
they mustn't have been lubricating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I lubricate?
must you lubricate?
must he lubricate?
must we lubricate?
must you lubricate?
must they lubricate? 	must I be lubricating?
must you be lubricating?
must he be lubricating?
must we be lubricating?
must you be lubricating?
must they be lubricating? 	must I have lubricated?
must you have lubricated?
must he have lubricated?
must we have lubricated?
must you have lubricated?
must they have lubricated? 	must I have been lubricating?
must you have been lubricating?
must he have been lubricating?
must we have been lubricating?
must you have been lubricating?
must they have been lubricating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I lubricate?
mustn't you lubricate?
mustn't he lubricate?
mustn't we lubricate?
mustn't you lubricate?
mustn't they lubricate? 	mustn't I be lubricating?
mustn't you be lubricating?
mustn't he be lubricating?
mustn't we be lubricating?
mustn't you be lubricating?
mustn't they be lubricating? 	mustn't I have lubricated?
mustn't you have lubricated?
mustn't he have lubricated?
mustn't we have lubricated?
mustn't you have lubricated?
mustn't they have lubricated? 	mustn't I have been lubricating?
mustn't you have been lubricating?
mustn't he have been lubricating?
mustn't we have been lubricating?
mustn't you have been lubricating?
mustn't they have been lubricating?