can string
Verbo irregular: string - strung- strung

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can string
you can string
she can string
we can string
you can string
they can string 	I can be stringing
you can be stringing
she can be stringing
we can be stringing
you can be stringing
they can be stringing	I can have strung
you can have strung
she 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
she can have been stringing
we can have been stringing
you can have been stringing
they can have been stringing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't string
you can't string
she can't string
we can't string
you can't string
they can't string 	I can't be stringing
you can't be stringing
she can't be stringing
we can't be stringing
you can't be stringing
they can't be stringing	I can't have strung
you can't have strung
she can't have strung
we can't have strung
you can't have strung
they can't have strung	I can't have been stringing
you can't have been stringing
she can't have been stringing
we can't have been stringing
you can't have been stringing
they can't have been stringing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I string?
can you string?
can she string?
can we string?
can you string?
can they string? 	can I be stringing?
can you be stringing?
can she be stringing?
can we be stringing?
can you be stringing?
can they be stringing? 	can I have strung?
can you have strung?
can she 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 she have been stringing?
can we have been stringing?
can you have been stringing?
can they have been stringing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I string?
can't you string?
can't she string?
can't we string?
can't you string?
can't they string? 	can't I be stringing?
can't you be stringing?
can't she be stringing?
can't we be stringing?
can't you be stringing?
can't they be stringing? 	can't I have strung?
can't you have strung?
can't she have strung?
can't we have strung?
can't you have strung?
can't they have strung? 	can't I have been stringing?
can't you have been stringing?
can't she have been stringing?
can't we have been stringing?
can't you have been stringing?
can't they have been stringing?