Conjugación del verbo inglés
CAN PEN

Verbo regular: pen - penned - penned

Afirmación

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

Negación

Forma simple	Forma con V-ing
I can't pen you can't pen he can't pen we can't pen you can't pen they can't pen	I can't be penning you can't be penning he can't be penning we can't be penning you can't be penning they can't be penning
Perfecto	Perfecto con V-ing
I can't have penned you can't have penned he can't have penned we can't have penned you can't have penned they can't have penned	I can't have been penning you can't have been penning he can't have been penning we can't have been penning you can't have been penning they can't have been penning

Forma interrogativa

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

Forma interro-negativa

Forma simple	Forma con V-ing
can't I pen? can't you pen? can't he pen? can't we pen? can't you pen? can't they pen?	can't I be penning? can't you be penning? can't he be penning? can't we be penning? can't you be penning? can't they be penning?
Perfecto	Perfecto con V-ing
can't I have penned? can't you have penned? can't he have penned? can't we have penned? can't you have penned? can't they have penned?	can't I have been penning? can't you have been penning? can't he have been penning? can't we have been penning? can't you have been penning? can't they have been penning?