Conjugação do verbo inglês
COULD BARK

Verbo regular: bark - barked - barked

Afirmação

Forma simple	Forma com V-ing
I could bark you could bark he could bark we could bark you could bark they could bark	I could be barking you could be barking he could be barking we could be barking you could be barking they could be barking
Perfeito	Perfeito com V-ing
I could have barked you could have barked he could have barked we could have barked you could have barked they could have barked	I could have been barking you could have been barking he could have been barking we could have been barking you could have been barking they could have been barking

Negação

Forma simple	Forma com V-ing
I couldn't bark you couldn't bark he couldn't bark we couldn't bark you couldn't bark they couldn't bark	I couldn't be barking you couldn't be barking he couldn't be barking we couldn't be barking you couldn't be barking they couldn't be barking
Perfeito	Perfeito com V-ing
I couldn't have barked you couldn't have barked he couldn't have barked we couldn't have barked you couldn't have barked they couldn't have barked	I couldn't have been barking you couldn't have been barking he couldn't have been barking we couldn't have been barking you couldn't have been barking they couldn't have been barking

Forma interrogativa

Forma simple	Forma com V-ing
could I bark? could you bark? could he bark? could we bark? could you bark? could they bark?	could I be barking? could you be barking? could he be barking? could we be barking? could you be barking? could they be barking?
Perfeito	Perfeito com V-ing
could I have barked? could you have barked? could he have barked? could we have barked? could you have barked? could they have barked?	could I have been barking? could you have been barking? could he have been barking? could we have been barking? could you have been barking? could they have been barking?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I bark? couldn't you bark? couldn't he bark? couldn't we bark? couldn't you bark? couldn't they bark?	couldn't I be barking? couldn't you be barking? couldn't he be barking? couldn't we be barking? couldn't you be barking? couldn't they be barking?
Perfeito	Perfeito com V-ing
couldn't I have barked? couldn't you have barked? couldn't he have barked? couldn't we have barked? couldn't you have barked? couldn't they have barked?	couldn't I have been barking? couldn't you have been barking? couldn't he have been barking? couldn't we have been barking? couldn't you have been barking? couldn't they have been barking?