can pen
Verbo regolare: pen - penned- penned

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto 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	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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto 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	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 semplice 	Forma con V-ing 	Perfetto 	Perfetto 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? 	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 semplice 	Forma con V-ing 	Perfetto 	Perfetto 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? 	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?