can change
Verbo regular: change - changed- changed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can change
you can change
she can change
we can change
you can change
they can change 	I can be changing
you can be changing
she can be changing
we can be changing
you can be changing
they can be changing	I can have changed
you can have changed
she can have changed
we can have changed
you can have changed
they can have changed	I can have been changing
you can have been changing
she can have been changing
we can have been changing
you can have been changing
they can have been changing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot change
you cannot change
she cannot change
we cannot change
you cannot change
they cannot change 	I cannot be changing
you cannot be changing
she cannot be changing
we cannot be changing
you cannot be changing
they cannot be changing	I cannot have changed
you cannot have changed
she cannot have changed
we cannot have changed
you cannot have changed
they cannot have changed	I cannot have been changing
you cannot have been changing
she cannot have been changing
we cannot have been changing
you cannot have been changing
they cannot have been changing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I change?
can you change?
can she change?
can we change?
can you change?
can they change? 	can I be changing?
can you be changing?
can she be changing?
can we be changing?
can you be changing?
can they be changing? 	can I have changed?
can you have changed?
can she have changed?
can we have changed?
can you have changed?
can they have changed? 	can I have been changing?
can you have been changing?
can she have been changing?
can we have been changing?
can you have been changing?
can they have been changing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not change?
can you not change?
can she not change?
can we not change?
can you not change?
can they not change? 	can I not be changing?
can you not be changing?
can she not be changing?
can we not be changing?
can you not be changing?
can they not be changing? 	can I not have changed?
can you not have changed?
can she not have changed?
can we not have changed?
can you not have changed?
can they not have changed? 	can I not have been changing?
can you not have been changing?
can she not have been changing?
can we not have been changing?
can you not have been changing?
can they not have been changing?