can grumble
Verbo regolare: grumble - grumbled- grumbled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can grumble
you can grumble
he can grumble
we can grumble
you can grumble
they can grumble 	I can be grumbling
you can be grumbling
he can be grumbling
we can be grumbling
you can be grumbling
they can be grumbling	I can have grumbled
you can have grumbled
he can have grumbled
we can have grumbled
you can have grumbled
they can have grumbled	I can have been grumbling
you can have been grumbling
he can have been grumbling
we can have been grumbling
you can have been grumbling
they can have been grumbling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot grumble
you cannot grumble
he cannot grumble
we cannot grumble
you cannot grumble
they cannot grumble 	I cannot be grumbling
you cannot be grumbling
he cannot be grumbling
we cannot be grumbling
you cannot be grumbling
they cannot be grumbling	I cannot have grumbled
you cannot have grumbled
he cannot have grumbled
we cannot have grumbled
you cannot have grumbled
they cannot have grumbled	I cannot have been grumbling
you cannot have been grumbling
he cannot have been grumbling
we cannot have been grumbling
you cannot have been grumbling
they cannot have been grumbling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I grumble?
can you grumble?
can he grumble?
can we grumble?
can you grumble?
can they grumble? 	can I be grumbling?
can you be grumbling?
can he be grumbling?
can we be grumbling?
can you be grumbling?
can they be grumbling? 	can I have grumbled?
can you have grumbled?
can he have grumbled?
can we have grumbled?
can you have grumbled?
can they have grumbled? 	can I have been grumbling?
can you have been grumbling?
can he have been grumbling?
can we have been grumbling?
can you have been grumbling?
can they have been grumbling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not grumble?
can you not grumble?
can he not grumble?
can we not grumble?
can you not grumble?
can they not grumble? 	can I not be grumbling?
can you not be grumbling?
can he not be grumbling?
can we not be grumbling?
can you not be grumbling?
can they not be grumbling? 	can I not have grumbled?
can you not have grumbled?
can he not have grumbled?
can we not have grumbled?
can you not have grumbled?
can they not have grumbled? 	can I not have been grumbling?
can you not have been grumbling?
can he not have been grumbling?
can we not have been grumbling?
can you not have been grumbling?
can they not have been grumbling?