Conjugación del verbo inglés
CAN OPEN

Verbo regular: open - opened - opened

Afirmación

Forma simple	Forma con V-ing
I can open you can open he can open we can open you can open they can open	I can be opening you can be opening he can be opening we can be opening you can be opening they can be opening
Perfecto	Perfecto con V-ing
I can have opened you can have opened he can have opened we can have opened you can have opened they can have opened	I can have been opening you can have been opening he can have been opening we can have been opening you can have been opening they can have been opening

Negación

Forma simple	Forma con V-ing
I cannot open you cannot open he cannot open we cannot open you cannot open they cannot open	I cannot be opening you cannot be opening he cannot be opening we cannot be opening you cannot be opening they cannot be opening
Perfecto	Perfecto con V-ing
I cannot have opened you cannot have opened he cannot have opened we cannot have opened you cannot have opened they cannot have opened	I cannot have been opening you cannot have been opening he cannot have been opening we cannot have been opening you cannot have been opening they cannot have been opening

Forma interrogativa

Forma simple	Forma con V-ing
can I open? can you open? can he open? can we open? can you open? can they open?	can I be opening? can you be opening? can he be opening? can we be opening? can you be opening? can they be opening?
Perfecto	Perfecto con V-ing
can I have opened? can you have opened? can he have opened? can we have opened? can you have opened? can they have opened?	can I have been opening? can you have been opening? can he have been opening? can we have been opening? can you have been opening? can they have been opening?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not open? can you not open? can he not open? can we not open? can you not open? can they not open?	can I not be opening? can you not be opening? can he not be opening? can we not be opening? can you not be opening? can they not be opening?
Perfecto	Perfecto con V-ing
can I not have opened? can you not have opened? can he not have opened? can we not have opened? can you not have opened? can they not have opened?	can I not have been opening? can you not have been opening? can he not have been opening? can we not have been opening? can you not have been opening? can they not have been opening?