must specify
Verbo regular: specify - specified- specified

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must specify
you must specify
he must specify
we must specify
you must specify
they must specify 	I must be specifying
you must be specifying
he must be specifying
we must be specifying
you must be specifying
they must be specifying	I must have specified
you must have specified
he must have specified
we must have specified
you must have specified
they must have specified	I must have been specifying
you must have been specifying
he must have been specifying
we must have been specifying
you must have been specifying
they must have been specifying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not specify
you must not specify
he must not specify
we must not specify
you must not specify
they must not specify 	I must not be specifying
you must not be specifying
he must not be specifying
we must not be specifying
you must not be specifying
they must not be specifying	I must not have specified
you must not have specified
he must not have specified
we must not have specified
you must not have specified
they must not have specified	I must not have been specifying
you must not have been specifying
he must not have been specifying
we must not have been specifying
you must not have been specifying
they must not have been specifying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I specify?
must you specify?
must he specify?
must we specify?
must you specify?
must they specify? 	must I be specifying?
must you be specifying?
must he be specifying?
must we be specifying?
must you be specifying?
must they be specifying? 	must I have specified?
must you have specified?
must he have specified?
must we have specified?
must you have specified?
must they have specified? 	must I have been specifying?
must you have been specifying?
must he have been specifying?
must we have been specifying?
must you have been specifying?
must they have been specifying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not specify?
must you not specify?
must he not specify?
must we not specify?
must you not specify?
must they not specify? 	must I not be specifying?
must you not be specifying?
must he not be specifying?
must we not be specifying?
must you not be specifying?
must they not be specifying? 	must I not have specified?
must you not have specified?
must he not have specified?
must we not have specified?
must you not have specified?
must they not have specified? 	must I not have been specifying?
must you not have been specifying?
must he not have been specifying?
must we not have been specifying?
must you not have been specifying?
must they not have been specifying?