can sandwich
Verbo regular: sandwich - sandwiched- sandwiched

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can sandwich
you can sandwich
he can sandwich
we can sandwich
you can sandwich
they can sandwich 	I can be sandwiching
you can be sandwiching
he can be sandwiching
we can be sandwiching
you can be sandwiching
they can be sandwiching	I can have sandwiched
you can have sandwiched
he can have sandwiched
we can have sandwiched
you can have sandwiched
they can have sandwiched	I can have been sandwiching
you can have been sandwiching
he can have been sandwiching
we can have been sandwiching
you can have been sandwiching
they can have been sandwiching	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot sandwich
you cannot sandwich
he cannot sandwich
we cannot sandwich
you cannot sandwich
they cannot sandwich 	I cannot be sandwiching
you cannot be sandwiching
he cannot be sandwiching
we cannot be sandwiching
you cannot be sandwiching
they cannot be sandwiching	I cannot have sandwiched
you cannot have sandwiched
he cannot have sandwiched
we cannot have sandwiched
you cannot have sandwiched
they cannot have sandwiched	I cannot have been sandwiching
you cannot have been sandwiching
he cannot have been sandwiching
we cannot have been sandwiching
you cannot have been sandwiching
they cannot have been sandwiching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I sandwich?
can you sandwich?
can he sandwich?
can we sandwich?
can you sandwich?
can they sandwich? 	can I be sandwiching?
can you be sandwiching?
can he be sandwiching?
can we be sandwiching?
can you be sandwiching?
can they be sandwiching? 	can I have sandwiched?
can you have sandwiched?
can he have sandwiched?
can we have sandwiched?
can you have sandwiched?
can they have sandwiched? 	can I have been sandwiching?
can you have been sandwiching?
can he have been sandwiching?
can we have been sandwiching?
can you have been sandwiching?
can they have been sandwiching? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not sandwich?
can you not sandwich?
can he not sandwich?
can we not sandwich?
can you not sandwich?
can they not sandwich? 	can I not be sandwiching?
can you not be sandwiching?
can he not be sandwiching?
can we not be sandwiching?
can you not be sandwiching?
can they not be sandwiching? 	can I not have sandwiched?
can you not have sandwiched?
can he not have sandwiched?
can we not have sandwiched?
can you not have sandwiched?
can they not have sandwiched? 	can I not have been sandwiching?
can you not have been sandwiching?
can he not have been sandwiching?
can we not have been sandwiching?
can you not have been sandwiching?
can they not have been sandwiching?