Conjugación del verbo inglés
COULD TUNNEL

Verbo regular: tunnel - tunnelled - tunnelled

Afirmación

Forma simple	Forma con V-ing
I could tunnel you could tunnel she could tunnel we could tunnel you could tunnel they could tunnel	I could be tunnelling you could be tunnelling she could be tunnelling we could be tunnelling you could be tunnelling they could be tunnelling
Perfecto	Perfecto con V-ing
I could have tunnelled you could have tunnelled she 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 she could have been tunnelling we could have been tunnelling you could have been tunnelling they could have been tunnelling

Negación

Forma simple	Forma con V-ing
I couldn't tunnel you couldn't tunnel she 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 she couldn't be tunnelling we couldn't be tunnelling you couldn't be tunnelling they couldn't be tunnelling
Perfecto	Perfecto con V-ing
I couldn't have tunnelled you couldn't have tunnelled she 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 she 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 con V-ing
could I tunnel? could you tunnel? could she tunnel? could we tunnel? could you tunnel? could they tunnel?	could I be tunnelling? could you be tunnelling? could she be tunnelling? could we be tunnelling? could you be tunnelling? could they be tunnelling?
Perfecto	Perfecto con V-ing
could I have tunnelled? could you have tunnelled? could she 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 she have been tunnelling? could we have been tunnelling? could you have been tunnelling? could they have been tunnelling?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I tunnel? couldn't you tunnel? couldn't she 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 she be tunnelling? couldn't we be tunnelling? couldn't you be tunnelling? couldn't they be tunnelling?
Perfecto	Perfecto con V-ing
couldn't I have tunnelled? couldn't you have tunnelled? couldn't she 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 she have been tunnelling? couldn't we have been tunnelling? couldn't you have been tunnelling? couldn't they have been tunnelling?