can stop
Verbo regular: stop - stopped- stopped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can stop
you can stop
she can stop
we can stop
you can stop
they can stop 	I can be stopping
you can be stopping
she can be stopping
we can be stopping
you can be stopping
they can be stopping	I can have stopped
you can have stopped
she can have stopped
we can have stopped
you can have stopped
they can have stopped	I can have been stopping
you can have been stopping
she can have been stopping
we can have been stopping
you can have been stopping
they can have been stopping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot stop
you cannot stop
she cannot stop
we cannot stop
you cannot stop
they cannot stop 	I cannot be stopping
you cannot be stopping
she cannot be stopping
we cannot be stopping
you cannot be stopping
they cannot be stopping	I cannot have stopped
you cannot have stopped
she cannot have stopped
we cannot have stopped
you cannot have stopped
they cannot have stopped	I cannot have been stopping
you cannot have been stopping
she cannot have been stopping
we cannot have been stopping
you cannot have been stopping
they cannot have been stopping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I stop?
can you stop?
can she stop?
can we stop?
can you stop?
can they stop? 	can I be stopping?
can you be stopping?
can she be stopping?
can we be stopping?
can you be stopping?
can they be stopping? 	can I have stopped?
can you have stopped?
can she have stopped?
can we have stopped?
can you have stopped?
can they have stopped? 	can I have been stopping?
can you have been stopping?
can she have been stopping?
can we have been stopping?
can you have been stopping?
can they have been stopping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not stop?
can you not stop?
can she not stop?
can we not stop?
can you not stop?
can they not stop? 	can I not be stopping?
can you not be stopping?
can she not be stopping?
can we not be stopping?
can you not be stopping?
can they not be stopping? 	can I not have stopped?
can you not have stopped?
can she not have stopped?
can we not have stopped?
can you not have stopped?
can they not have stopped? 	can I not have been stopping?
can you not have been stopping?
can she not have been stopping?
can we not have been stopping?
can you not have been stopping?
can they not have been stopping?