must lube
Verbo regular: lube - lubed- lubed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must lube
you must lube
he must lube
we must lube
you must lube
they must lube 	I must be lubing
you must be lubing
he must be lubing
we must be lubing
you must be lubing
they must be lubing	I must have lubed
you must have lubed
he must have lubed
we must have lubed
you must have lubed
they must have lubed	I must have been lubing
you must have been lubing
he must have been lubing
we must have been lubing
you must have been lubing
they must have been lubing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't lube
you mustn't lube
he mustn't lube
we mustn't lube
you mustn't lube
they mustn't lube 	I mustn't be lubing
you mustn't be lubing
he mustn't be lubing
we mustn't be lubing
you mustn't be lubing
they mustn't be lubing	I mustn't have lubed
you mustn't have lubed
he mustn't have lubed
we mustn't have lubed
you mustn't have lubed
they mustn't have lubed	I mustn't have been lubing
you mustn't have been lubing
he mustn't have been lubing
we mustn't have been lubing
you mustn't have been lubing
they mustn't have been lubing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I lube?
must you lube?
must he lube?
must we lube?
must you lube?
must they lube? 	must I be lubing?
must you be lubing?
must he be lubing?
must we be lubing?
must you be lubing?
must they be lubing? 	must I have lubed?
must you have lubed?
must he have lubed?
must we have lubed?
must you have lubed?
must they have lubed? 	must I have been lubing?
must you have been lubing?
must he have been lubing?
must we have been lubing?
must you have been lubing?
must they have been lubing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I lube?
mustn't you lube?
mustn't he lube?
mustn't we lube?
mustn't you lube?
mustn't they lube? 	mustn't I be lubing?
mustn't you be lubing?
mustn't he be lubing?
mustn't we be lubing?
mustn't you be lubing?
mustn't they be lubing? 	mustn't I have lubed?
mustn't you have lubed?
mustn't he have lubed?
mustn't we have lubed?
mustn't you have lubed?
mustn't they have lubed? 	mustn't I have been lubing?
mustn't you have been lubing?
mustn't he have been lubing?
mustn't we have been lubing?
mustn't you have been lubing?
mustn't they have been lubing?