could announce
Verbo regular: announce - announced- announced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could announce
you could announce
she could announce
we could announce
you could announce
they could announce 	I could be announcing
you could be announcing
she could be announcing
we could be announcing
you could be announcing
they could be announcing	I could have announced
you could have announced
she could have announced
we could have announced
you could have announced
they could have announced	I could have been announcing
you could have been announcing
she could have been announcing
we could have been announcing
you could have been announcing
they could have been announcing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not announce
you could not announce
she could not announce
we could not announce
you could not announce
they could not announce 	I could not be announcing
you could not be announcing
she could not be announcing
we could not be announcing
you could not be announcing
they could not be announcing	I could not have announced
you could not have announced
she could not have announced
we could not have announced
you could not have announced
they could not have announced	I could not have been announcing
you could not have been announcing
she could not have been announcing
we could not have been announcing
you could not have been announcing
they could not have been announcing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I announce?
could you announce?
could she announce?
could we announce?
could you announce?
could they announce? 	could I be announcing?
could you be announcing?
could she be announcing?
could we be announcing?
could you be announcing?
could they be announcing? 	could I have announced?
could you have announced?
could she have announced?
could we have announced?
could you have announced?
could they have announced? 	could I have been announcing?
could you have been announcing?
could she have been announcing?
could we have been announcing?
could you have been announcing?
could they have been announcing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not announce?
could you not announce?
could she not announce?
could we not announce?
could you not announce?
could they not announce? 	could I not be announcing?
could you not be announcing?
could she not be announcing?
could we not be announcing?
could you not be announcing?
could they not be announcing? 	could I not have announced?
could you not have announced?
could she not have announced?
could we not have announced?
could you not have announced?
could they not have announced? 	could I not have been announcing?
could you not have been announcing?
could she not have been announcing?
could we not have been announcing?
could you not have been announcing?
could they not have been announcing?