must correspond
Verbo regular: correspond - corresponded- corresponded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must correspond
you must correspond
he must correspond
we must correspond
you must correspond
they must correspond 	I must be corresponding
you must be corresponding
he must be corresponding
we must be corresponding
you must be corresponding
they must be corresponding	I must have corresponded
you must have corresponded
he must have corresponded
we must have corresponded
you must have corresponded
they must have corresponded	I must have been corresponding
you must have been corresponding
he must have been corresponding
we must have been corresponding
you must have been corresponding
they must have been corresponding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not correspond
you must not correspond
he must not correspond
we must not correspond
you must not correspond
they must not correspond 	I must not be corresponding
you must not be corresponding
he must not be corresponding
we must not be corresponding
you must not be corresponding
they must not be corresponding	I must not have corresponded
you must not have corresponded
he must not have corresponded
we must not have corresponded
you must not have corresponded
they must not have corresponded	I must not have been corresponding
you must not have been corresponding
he must not have been corresponding
we must not have been corresponding
you must not have been corresponding
they must not have been corresponding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I correspond?
must you correspond?
must he correspond?
must we correspond?
must you correspond?
must they correspond? 	must I be corresponding?
must you be corresponding?
must he be corresponding?
must we be corresponding?
must you be corresponding?
must they be corresponding? 	must I have corresponded?
must you have corresponded?
must he have corresponded?
must we have corresponded?
must you have corresponded?
must they have corresponded? 	must I have been corresponding?
must you have been corresponding?
must he have been corresponding?
must we have been corresponding?
must you have been corresponding?
must they have been corresponding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not correspond?
must you not correspond?
must he not correspond?
must we not correspond?
must you not correspond?
must they not correspond? 	must I not be corresponding?
must you not be corresponding?
must he not be corresponding?
must we not be corresponding?
must you not be corresponding?
must they not be corresponding? 	must I not have corresponded?
must you not have corresponded?
must he not have corresponded?
must we not have corresponded?
must you not have corresponded?
must they not have corresponded? 	must I not have been corresponding?
must you not have been corresponding?
must he not have been corresponding?
must we not have been corresponding?
must you not have been corresponding?
must they not have been corresponding?