Conjugação do verbo inglês
COULD TUNNEL

Verbo regular: tunnel - tunnelled - tunnelled

Afirmação

Forma simple	Forma com V-ing
I could tunnel you could tunnel he could tunnel we could tunnel you could tunnel they could tunnel	I could be tunnelling you could be tunnelling he could be tunnelling we could be tunnelling you could be tunnelling they could be tunnelling
Perfeito	Perfeito com V-ing
I could have tunnelled you could have tunnelled he could have tunnelled we could have tunnelled you could have tunnelled they could have tunnelled	I could have been tunnelling you could have been tunnelling he could have been tunnelling we could have been tunnelling you could have been tunnelling they could have been tunnelling

Negação

Forma simple	Forma com V-ing
I couldn't tunnel you couldn't tunnel he couldn't tunnel we couldn't tunnel you couldn't tunnel they couldn't tunnel	I couldn't be tunnelling you couldn't be tunnelling he couldn't be tunnelling we couldn't be tunnelling you couldn't be tunnelling they couldn't be tunnelling
Perfeito	Perfeito com V-ing
I couldn't have tunnelled you couldn't have tunnelled he couldn't have tunnelled we couldn't have tunnelled you couldn't have tunnelled they couldn't have tunnelled	I couldn't have been tunnelling you couldn't have been tunnelling he couldn't have been tunnelling we couldn't have been tunnelling you couldn't have been tunnelling they couldn't have been tunnelling

Forma interrogativa

Forma simple	Forma com V-ing
could I tunnel? could you tunnel? could he tunnel? could we tunnel? could you tunnel? could they tunnel?	could I be tunnelling? could you be tunnelling? could he be tunnelling? could we be tunnelling? could you be tunnelling? could they be tunnelling?
Perfeito	Perfeito com V-ing
could I have tunnelled? could you have tunnelled? could he have tunnelled? could we have tunnelled? could you have tunnelled? could they have tunnelled?	could I have been tunnelling? could you have been tunnelling? could he have been tunnelling? could we have been tunnelling? could you have been tunnelling? could they have been tunnelling?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I tunnel? couldn't you tunnel? couldn't he tunnel? couldn't we tunnel? couldn't you tunnel? couldn't they tunnel?	couldn't I be tunnelling? couldn't you be tunnelling? couldn't he be tunnelling? couldn't we be tunnelling? couldn't you be tunnelling? couldn't they be tunnelling?
Perfeito	Perfeito com V-ing
couldn't I have tunnelled? couldn't you have tunnelled? couldn't he have tunnelled? couldn't we have tunnelled? couldn't you have tunnelled? couldn't they have tunnelled?	couldn't I have been tunnelling? couldn't you have been tunnelling? couldn't he have been tunnelling? couldn't we have been tunnelling? couldn't you have been tunnelling? couldn't they have been tunnelling?