Conjugación del verbo inglés
CAN ERR

Verbo regular: err - erred - erred

Afirmación

Forma simple	Forma con V-ing
I can err you can err he can err we can err you can err they can err	I can be erring you can be erring he can be erring we can be erring you can be erring they can be erring
Perfecto	Perfecto con V-ing
I can have erred you can have erred he can have erred we can have erred you can have erred they can have erred	I can have been erring you can have been erring he can have been erring we can have been erring you can have been erring they can have been erring

Negación

Forma simple	Forma con V-ing
I cannot err you cannot err he cannot err we cannot err you cannot err they cannot err	I cannot be erring you cannot be erring he cannot be erring we cannot be erring you cannot be erring they cannot be erring
Perfecto	Perfecto con V-ing
I cannot have erred you cannot have erred he cannot have erred we cannot have erred you cannot have erred they cannot have erred	I cannot have been erring you cannot have been erring he cannot have been erring we cannot have been erring you cannot have been erring they cannot have been erring

Forma interrogativa

Forma simple	Forma con V-ing
can I err? can you err? can he err? can we err? can you err? can they err?	can I be erring? can you be erring? can he be erring? can we be erring? can you be erring? can they be erring?
Perfecto	Perfecto con V-ing
can I have erred? can you have erred? can he have erred? can we have erred? can you have erred? can they have erred?	can I have been erring? can you have been erring? can he have been erring? can we have been erring? can you have been erring? can they have been erring?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not err? can you not err? can he not err? can we not err? can you not err? can they not err?	can I not be erring? can you not be erring? can he not be erring? can we not be erring? can you not be erring? can they not be erring?
Perfecto	Perfecto con V-ing
can I not have erred? can you not have erred? can he not have erred? can we not have erred? can you not have erred? can they not have erred?	can I not have been erring? can you not have been erring? can he not have been erring? can we not have been erring? can you not have been erring? can they not have been erring?