can stopper
Verbo regular: stopper - stoppered- stoppered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can stopper
you can stopper
he can stopper
we can stopper
you can stopper
they can stopper 	I can be stoppering
you can be stoppering
he can be stoppering
we can be stoppering
you can be stoppering
they can be stoppering	I can have stoppered
you can have stoppered
he can have stoppered
we can have stoppered
you can have stoppered
they can have stoppered	I can have been stoppering
you can have been stoppering
he can have been stoppering
we can have been stoppering
you can have been stoppering
they can have been stoppering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot stopper
you cannot stopper
he cannot stopper
we cannot stopper
you cannot stopper
they cannot stopper 	I cannot be stoppering
you cannot be stoppering
he cannot be stoppering
we cannot be stoppering
you cannot be stoppering
they cannot be stoppering	I cannot have stoppered
you cannot have stoppered
he cannot have stoppered
we cannot have stoppered
you cannot have stoppered
they cannot have stoppered	I cannot have been stoppering
you cannot have been stoppering
he cannot have been stoppering
we cannot have been stoppering
you cannot have been stoppering
they cannot have been stoppering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I stopper?
can you stopper?
can he stopper?
can we stopper?
can you stopper?
can they stopper? 	can I be stoppering?
can you be stoppering?
can he be stoppering?
can we be stoppering?
can you be stoppering?
can they be stoppering? 	can I have stoppered?
can you have stoppered?
can he have stoppered?
can we have stoppered?
can you have stoppered?
can they have stoppered? 	can I have been stoppering?
can you have been stoppering?
can he have been stoppering?
can we have been stoppering?
can you have been stoppering?
can they have been stoppering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not stopper?
can you not stopper?
can he not stopper?
can we not stopper?
can you not stopper?
can they not stopper? 	can I not be stoppering?
can you not be stoppering?
can he not be stoppering?
can we not be stoppering?
can you not be stoppering?
can they not be stoppering? 	can I not have stoppered?
can you not have stoppered?
can he not have stoppered?
can we not have stoppered?
can you not have stoppered?
can they not have stoppered? 	can I not have been stoppering?
can you not have been stoppering?
can he not have been stoppering?
can we not have been stoppering?
can you not have been stoppering?
can they not have been stoppering?