can switch
Verbo regular: switch - switched- switched

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can switch
you can switch
he can switch
we can switch
you can switch
they can switch 	I can be switching
you can be switching
he can be switching
we can be switching
you can be switching
they can be switching	I can have switched
you can have switched
he can have switched
we can have switched
you can have switched
they can have switched	I can have been switching
you can have been switching
he can have been switching
we can have been switching
you can have been switching
they can have been switching	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot switch
you cannot switch
he cannot switch
we cannot switch
you cannot switch
they cannot switch 	I cannot be switching
you cannot be switching
he cannot be switching
we cannot be switching
you cannot be switching
they cannot be switching	I cannot have switched
you cannot have switched
he cannot have switched
we cannot have switched
you cannot have switched
they cannot have switched	I cannot have been switching
you cannot have been switching
he cannot have been switching
we cannot have been switching
you cannot have been switching
they cannot have been switching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I switch?
can you switch?
can he switch?
can we switch?
can you switch?
can they switch? 	can I be switching?
can you be switching?
can he be switching?
can we be switching?
can you be switching?
can they be switching? 	can I have switched?
can you have switched?
can he have switched?
can we have switched?
can you have switched?
can they have switched? 	can I have been switching?
can you have been switching?
can he have been switching?
can we have been switching?
can you have been switching?
can they have been switching? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not switch?
can you not switch?
can he not switch?
can we not switch?
can you not switch?
can they not switch? 	can I not be switching?
can you not be switching?
can he not be switching?
can we not be switching?
can you not be switching?
can they not be switching? 	can I not have switched?
can you not have switched?
can he not have switched?
can we not have switched?
can you not have switched?
can they not have switched? 	can I not have been switching?
can you not have been switching?
can he not have been switching?
can we not have been switching?
can you not have been switching?
can they not have been switching?