could grub
Verbe régulier : grub - grubbed- grubbed
Traduction française : fouir - fouiller 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could grub
you could grub
he could grub
we could grub
you could grub
they could grub 	I could be grubbing
you could be grubbing
he could be grubbing
we could be grubbing
you could be grubbing
they could be grubbing	I could have grubbed
you could have grubbed
he could have grubbed
we could have grubbed
you could have grubbed
they could have grubbed	I could have been grubbing
you could have been grubbing
he could have been grubbing
we could have been grubbing
you could have been grubbing
they could have been grubbing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't grub
you couldn't grub
he couldn't grub
we couldn't grub
you couldn't grub
they couldn't grub 	I couldn't be grubbing
you couldn't be grubbing
he couldn't be grubbing
we couldn't be grubbing
you couldn't be grubbing
they couldn't be grubbing	I couldn't have grubbed
you couldn't have grubbed
he couldn't have grubbed
we couldn't have grubbed
you couldn't have grubbed
they couldn't have grubbed	I couldn't have been grubbing
you couldn't have been grubbing
he couldn't have been grubbing
we couldn't have been grubbing
you couldn't have been grubbing
they couldn't have been grubbing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I grub?
could you grub?
could he grub?
could we grub?
could you grub?
could they grub? 	could I be grubbing?
could you be grubbing?
could he be grubbing?
could we be grubbing?
could you be grubbing?
could they be grubbing? 	could I have grubbed?
could you have grubbed?
could he have grubbed?
could we have grubbed?
could you have grubbed?
could they have grubbed? 	could I have been grubbing?
could you have been grubbing?
could he have been grubbing?
could we have been grubbing?
could you have been grubbing?
could they have been grubbing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I grub?
couldn't you grub?
couldn't he grub?
couldn't we grub?
couldn't you grub?
couldn't they grub? 	couldn't I be grubbing?
couldn't you be grubbing?
couldn't he be grubbing?
couldn't we be grubbing?
couldn't you be grubbing?
couldn't they be grubbing? 	couldn't I have grubbed?
couldn't you have grubbed?
couldn't he have grubbed?
couldn't we have grubbed?
couldn't you have grubbed?
couldn't they have grubbed? 	couldn't I have been grubbing?
couldn't you have been grubbing?
couldn't he have been grubbing?
couldn't we have been grubbing?
couldn't you have been grubbing?
couldn't they have been grubbing?