must lubricate
Verbo regular: lubricate - lubricated- lubricated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must lubricate
you must lubricate
she must lubricate
we must lubricate
you must lubricate
they must lubricate 	I must be lubricating
you must be lubricating
she must be lubricating
we must be lubricating
you must be lubricating
they must be lubricating	I must have lubricated
you must have lubricated
she 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
she must have been lubricating
we must have been lubricating
you must have been lubricating
they must have been lubricating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not lubricate
you must not lubricate
she must not lubricate
we must not lubricate
you must not lubricate
they must not lubricate 	I must not be lubricating
you must not be lubricating
she must not be lubricating
we must not be lubricating
you must not be lubricating
they must not be lubricating	I must not have lubricated
you must not have lubricated
she must not have lubricated
we must not have lubricated
you must not have lubricated
they must not have lubricated	I must not have been lubricating
you must not have been lubricating
she must not have been lubricating
we must not have been lubricating
you must not have been lubricating
they must not have been lubricating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I lubricate?
must you lubricate?
must she lubricate?
must we lubricate?
must you lubricate?
must they lubricate? 	must I be lubricating?
must you be lubricating?
must she be lubricating?
must we be lubricating?
must you be lubricating?
must they be lubricating? 	must I have lubricated?
must you have lubricated?
must she 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 she have been lubricating?
must we have been lubricating?
must you have been lubricating?
must they have been lubricating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not lubricate?
must you not lubricate?
must she not lubricate?
must we not lubricate?
must you not lubricate?
must they not lubricate? 	must I not be lubricating?
must you not be lubricating?
must she not be lubricating?
must we not be lubricating?
must you not be lubricating?
must they not be lubricating? 	must I not have lubricated?
must you not have lubricated?
must she not have lubricated?
must we not have lubricated?
must you not have lubricated?
must they not have lubricated? 	must I not have been lubricating?
must you not have been lubricating?
must she not have been lubricating?
must we not have been lubricating?
must you not have been lubricating?
must they not have been lubricating?