Conjugación del verbo inglés
COULD PEN

Verbo regular: pen - penned - penned

Afirmación

Forma simple	Forma con V-ing
I could pen you could pen she could pen we could pen you could pen they could pen	I could be penning you could be penning she could be penning we could be penning you could be penning they could be penning
Perfecto	Perfecto con V-ing
I could have penned you could have penned she could have penned we could have penned you could have penned they could have penned	I could have been penning you could have been penning she could have been penning we could have been penning you could have been penning they could have been penning

Negación

Forma simple	Forma con V-ing
I could not pen you could not pen she could not pen we could not pen you could not pen they could not pen	I could not be penning you could not be penning she could not be penning we could not be penning you could not be penning they could not be penning
Perfecto	Perfecto con V-ing
I could not have penned you could not have penned she could not have penned we could not have penned you could not have penned they could not have penned	I could not have been penning you could not have been penning she could not have been penning we could not have been penning you could not have been penning they could not have been penning

Forma interrogativa

Forma simple	Forma con V-ing
could I pen? could you pen? could she pen? could we pen? could you pen? could they pen?	could I be penning? could you be penning? could she be penning? could we be penning? could you be penning? could they be penning?
Perfecto	Perfecto con V-ing
could I have penned? could you have penned? could she have penned? could we have penned? could you have penned? could they have penned?	could I have been penning? could you have been penning? could she have been penning? could we have been penning? could you have been penning? could they have been penning?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not pen? could you not pen? could she not pen? could we not pen? could you not pen? could they not pen?	could I not be penning? could you not be penning? could she not be penning? could we not be penning? could you not be penning? could they not be penning?
Perfecto	Perfecto con V-ing
could I not have penned? could you not have penned? could she not have penned? could we not have penned? could you not have penned? could they not have penned?	could I not have been penning? could you not have been penning? could she not have been penning? could we not have been penning? could you not have been penning? could they not have been penning?