Conjugação do verbo inglês
COULD ANNOUNCE

Verbo regular: announce - announced - announced

Afirmação

Forma simple	Forma 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
Perfeito	Perfeito com V-ing
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
I couldn't announce you couldn't announce she couldn't announce we couldn't announce you couldn't announce they couldn't announce	I couldn't be announcing you couldn't be announcing she couldn't be announcing we couldn't be announcing you couldn't be announcing they couldn't be announcing
Perfeito	Perfeito com V-ing
I couldn't have announced you couldn't have announced she couldn't have announced we couldn't have announced you couldn't have announced they couldn't have announced	I couldn't have been announcing you couldn't have been announcing she couldn't have been announcing we couldn't have been announcing you couldn't have been announcing they couldn't have been announcing

Forma interrogativa

Forma simple	Forma 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?
Perfeito	Perfeito com V-ing
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
couldn't I announce? couldn't you announce? couldn't she announce? couldn't we announce? couldn't you announce? couldn't they announce?	couldn't I be announcing? couldn't you be announcing? couldn't she be announcing? couldn't we be announcing? couldn't you be announcing? couldn't they be announcing?
Perfeito	Perfeito com V-ing
couldn't I have announced? couldn't you have announced? couldn't she have announced? couldn't we have announced? couldn't you have announced? couldn't they have announced?	couldn't I have been announcing? couldn't you have been announcing? couldn't she have been announcing? couldn't we have been announcing? couldn't you have been announcing? couldn't they have been announcing?