could tunnel
Verbe régulier : tunnel - tunnelled- tunnelled
Traduction française : creuser - creuser ou percer un tunnel ou des tunnels 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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	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	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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	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	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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? 	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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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? 	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?