must acquaint
Verbo regular: acquaint - acquainted- acquainted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must acquaint
you must acquaint
he must acquaint
we must acquaint
you must acquaint
they must acquaint 	I must be acquainting
you must be acquainting
he must be acquainting
we must be acquainting
you must be acquainting
they must be acquainting	I must have acquainted
you must have acquainted
he must have acquainted
we must have acquainted
you must have acquainted
they must have acquainted	I must have been acquainting
you must have been acquainting
he must have been acquainting
we must have been acquainting
you must have been acquainting
they must have been acquainting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not acquaint
you must not acquaint
he must not acquaint
we must not acquaint
you must not acquaint
they must not acquaint 	I must not be acquainting
you must not be acquainting
he must not be acquainting
we must not be acquainting
you must not be acquainting
they must not be acquainting	I must not have acquainted
you must not have acquainted
he must not have acquainted
we must not have acquainted
you must not have acquainted
they must not have acquainted	I must not have been acquainting
you must not have been acquainting
he must not have been acquainting
we must not have been acquainting
you must not have been acquainting
they must not have been acquainting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I acquaint?
must you acquaint?
must he acquaint?
must we acquaint?
must you acquaint?
must they acquaint? 	must I be acquainting?
must you be acquainting?
must he be acquainting?
must we be acquainting?
must you be acquainting?
must they be acquainting? 	must I have acquainted?
must you have acquainted?
must he have acquainted?
must we have acquainted?
must you have acquainted?
must they have acquainted? 	must I have been acquainting?
must you have been acquainting?
must he have been acquainting?
must we have been acquainting?
must you have been acquainting?
must they have been acquainting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not acquaint?
must you not acquaint?
must he not acquaint?
must we not acquaint?
must you not acquaint?
must they not acquaint? 	must I not be acquainting?
must you not be acquainting?
must he not be acquainting?
must we not be acquainting?
must you not be acquainting?
must they not be acquainting? 	must I not have acquainted?
must you not have acquainted?
must he not have acquainted?
must we not have acquainted?
must you not have acquainted?
must they not have acquainted? 	must I not have been acquainting?
must you not have been acquainting?
must he not have been acquainting?
must we not have been acquainting?
must you not have been acquainting?
must they not have been acquainting?