can perform
Verbo regular: perform - performed- performed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can perform
you can perform
she can perform
we can perform
you can perform
they can perform 	I can be performing
you can be performing
she can be performing
we can be performing
you can be performing
they can be performing	I can have performed
you can have performed
she can have performed
we can have performed
you can have performed
they can have performed	I can have been performing
you can have been performing
she can have been performing
we can have been performing
you can have been performing
they can have been performing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot perform
you cannot perform
she cannot perform
we cannot perform
you cannot perform
they cannot perform 	I cannot be performing
you cannot be performing
she cannot be performing
we cannot be performing
you cannot be performing
they cannot be performing	I cannot have performed
you cannot have performed
she cannot have performed
we cannot have performed
you cannot have performed
they cannot have performed	I cannot have been performing
you cannot have been performing
she cannot have been performing
we cannot have been performing
you cannot have been performing
they cannot have been performing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I perform?
can you perform?
can she perform?
can we perform?
can you perform?
can they perform? 	can I be performing?
can you be performing?
can she be performing?
can we be performing?
can you be performing?
can they be performing? 	can I have performed?
can you have performed?
can she have performed?
can we have performed?
can you have performed?
can they have performed? 	can I have been performing?
can you have been performing?
can she have been performing?
can we have been performing?
can you have been performing?
can they have been performing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not perform?
can you not perform?
can she not perform?
can we not perform?
can you not perform?
can they not perform? 	can I not be performing?
can you not be performing?
can she not be performing?
can we not be performing?
can you not be performing?
can they not be performing? 	can I not have performed?
can you not have performed?
can she not have performed?
can we not have performed?
can you not have performed?
can they not have performed? 	can I not have been performing?
can you not have been performing?
can she not have been performing?
can we not have been performing?
can you not have been performing?
can they not have been performing?