could fumble
Verbo regolare: fumble - fumbled- fumbled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could fumble
you could fumble
he could fumble
we could fumble
you could fumble
they could fumble 	I could be fumbling
you could be fumbling
he could be fumbling
we could be fumbling
you could be fumbling
they could be fumbling	I could have fumbled
you could have fumbled
he could have fumbled
we could have fumbled
you could have fumbled
they could have fumbled	I could have been fumbling
you could have been fumbling
he could have been fumbling
we could have been fumbling
you could have been fumbling
they could have been fumbling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not fumble
you could not fumble
he could not fumble
we could not fumble
you could not fumble
they could not fumble 	I could not be fumbling
you could not be fumbling
he could not be fumbling
we could not be fumbling
you could not be fumbling
they could not be fumbling	I could not have fumbled
you could not have fumbled
he could not have fumbled
we could not have fumbled
you could not have fumbled
they could not have fumbled	I could not have been fumbling
you could not have been fumbling
he could not have been fumbling
we could not have been fumbling
you could not have been fumbling
they could not have been fumbling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I fumble?
could you fumble?
could he fumble?
could we fumble?
could you fumble?
could they fumble? 	could I be fumbling?
could you be fumbling?
could he be fumbling?
could we be fumbling?
could you be fumbling?
could they be fumbling? 	could I have fumbled?
could you have fumbled?
could he have fumbled?
could we have fumbled?
could you have fumbled?
could they have fumbled? 	could I have been fumbling?
could you have been fumbling?
could he have been fumbling?
could we have been fumbling?
could you have been fumbling?
could they have been fumbling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not fumble?
could you not fumble?
could he not fumble?
could we not fumble?
could you not fumble?
could they not fumble? 	could I not be fumbling?
could you not be fumbling?
could he not be fumbling?
could we not be fumbling?
could you not be fumbling?
could they not be fumbling? 	could I not have fumbled?
could you not have fumbled?
could he not have fumbled?
could we not have fumbled?
could you not have fumbled?
could they not have fumbled? 	could I not have been fumbling?
could you not have been fumbling?
could he not have been fumbling?
could we not have been fumbling?
could you not have been fumbling?
could they not have been fumbling?