can pun
Verbo regular: pun - punned- punned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can pun
you can pun
she can pun
we can pun
you can pun
they can pun 	I can be punning
you can be punning
she can be punning
we can be punning
you can be punning
they can be punning	I can have punned
you can have punned
she can have punned
we can have punned
you can have punned
they can have punned	I can have been punning
you can have been punning
she can have been punning
we can have been punning
you can have been punning
they can have been punning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot pun
you cannot pun
she cannot pun
we cannot pun
you cannot pun
they cannot pun 	I cannot be punning
you cannot be punning
she cannot be punning
we cannot be punning
you cannot be punning
they cannot be punning	I cannot have punned
you cannot have punned
she cannot have punned
we cannot have punned
you cannot have punned
they cannot have punned	I cannot have been punning
you cannot have been punning
she cannot have been punning
we cannot have been punning
you cannot have been punning
they cannot have been punning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I pun?
can you pun?
can she pun?
can we pun?
can you pun?
can they pun? 	can I be punning?
can you be punning?
can she be punning?
can we be punning?
can you be punning?
can they be punning? 	can I have punned?
can you have punned?
can she have punned?
can we have punned?
can you have punned?
can they have punned? 	can I have been punning?
can you have been punning?
can she have been punning?
can we have been punning?
can you have been punning?
can they have been punning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not pun?
can you not pun?
can she not pun?
can we not pun?
can you not pun?
can they not pun? 	can I not be punning?
can you not be punning?
can she not be punning?
can we not be punning?
can you not be punning?
can they not be punning? 	can I not have punned?
can you not have punned?
can she not have punned?
can we not have punned?
can you not have punned?
can they not have punned? 	can I not have been punning?
can you not have been punning?
can she not have been punning?
can we not have been punning?
can you not have been punning?
can they not have been punning?