Conjugación del verbo inglés
CAN GRUB

Verbo regular: grub - grubbed - grubbed

Afirmación

Forma simple	Forma con V-ing
I can grub you can grub he can grub we can grub you can grub they can grub	I can be grubbing you can be grubbing he can be grubbing we can be grubbing you can be grubbing they can be grubbing
Perfecto	Perfecto con V-ing
I can have grubbed you can have grubbed he can have grubbed we can have grubbed you can have grubbed they can have grubbed	I can have been grubbing you can have been grubbing he can have been grubbing we can have been grubbing you can have been grubbing they can have been grubbing

Negación

Forma simple	Forma con V-ing
I can't grub you can't grub he can't grub we can't grub you can't grub they can't grub	I can't be grubbing you can't be grubbing he can't be grubbing we can't be grubbing you can't be grubbing they can't be grubbing
Perfecto	Perfecto con V-ing
I can't have grubbed you can't have grubbed he can't have grubbed we can't have grubbed you can't have grubbed they can't have grubbed	I can't have been grubbing you can't have been grubbing he can't have been grubbing we can't have been grubbing you can't have been grubbing they can't have been grubbing

Forma interrogativa

Forma simple	Forma con V-ing
can I grub? can you grub? can he grub? can we grub? can you grub? can they grub?	can I be grubbing? can you be grubbing? can he be grubbing? can we be grubbing? can you be grubbing? can they be grubbing?
Perfecto	Perfecto con V-ing
can I have grubbed? can you have grubbed? can he have grubbed? can we have grubbed? can you have grubbed? can they have grubbed?	can I have been grubbing? can you have been grubbing? can he have been grubbing? can we have been grubbing? can you have been grubbing? can they have been grubbing?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I grub? can't you grub? can't he grub? can't we grub? can't you grub? can't they grub?	can't I be grubbing? can't you be grubbing? can't he be grubbing? can't we be grubbing? can't you be grubbing? can't they be grubbing?
Perfecto	Perfecto con V-ing
can't I have grubbed? can't you have grubbed? can't he have grubbed? can't we have grubbed? can't you have grubbed? can't they have grubbed?	can't I have been grubbing? can't you have been grubbing? can't he have been grubbing? can't we have been grubbing? can't you have been grubbing? can't they have been grubbing?