can string
Verbo irregular: string - strung- strung

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can string
you can string
he can string
we can string
you can string
they can string 	I can be stringing
you can be stringing
he can be stringing
we can be stringing
you can be stringing
they can be stringing	I can have strung
you can have strung
he can have strung
we can have strung
you can have strung
they can have strung	I can have been stringing
you can have been stringing
he can have been stringing
we can have been stringing
you can have been stringing
they can have been stringing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot string
you cannot string
he cannot string
we cannot string
you cannot string
they cannot string 	I cannot be stringing
you cannot be stringing
he cannot be stringing
we cannot be stringing
you cannot be stringing
they cannot be stringing	I cannot have strung
you cannot have strung
he cannot have strung
we cannot have strung
you cannot have strung
they cannot have strung	I cannot have been stringing
you cannot have been stringing
he cannot have been stringing
we cannot have been stringing
you cannot have been stringing
they cannot have been stringing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I string?
can you string?
can he string?
can we string?
can you string?
can they string? 	can I be stringing?
can you be stringing?
can he be stringing?
can we be stringing?
can you be stringing?
can they be stringing? 	can I have strung?
can you have strung?
can he have strung?
can we have strung?
can you have strung?
can they have strung? 	can I have been stringing?
can you have been stringing?
can he have been stringing?
can we have been stringing?
can you have been stringing?
can they have been stringing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not string?
can you not string?
can he not string?
can we not string?
can you not string?
can they not string? 	can I not be stringing?
can you not be stringing?
can he not be stringing?
can we not be stringing?
can you not be stringing?
can they not be stringing? 	can I not have strung?
can you not have strung?
can he not have strung?
can we not have strung?
can you not have strung?
can they not have strung? 	can I not have been stringing?
can you not have been stringing?
can he not have been stringing?
can we not have been stringing?
can you not have been stringing?
can they not have been stringing?