should grumble
Verbo regular: grumble - grumbled- grumbled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd grumble
you'd grumble
he'd grumble
we'd grumble
you'd grumble
they'd grumble 	I'd be grumbling
you'd be grumbling
he'd be grumbling
we'd be grumbling
you'd be grumbling
they'd be grumbling	I should've grumbled
you should've grumbled
he should've grumbled
we should've grumbled
you should've grumbled
they should've grumbled	I should've been grumbling
you should've been grumbling
he should've been grumbling
we should've been grumbling
you should've been grumbling
they should've been grumbling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't grumble
you shouldn't grumble
he shouldn't grumble
we shouldn't grumble
you shouldn't grumble
they shouldn't grumble 	I shouldn't be grumbling
you shouldn't be grumbling
he shouldn't be grumbling
we shouldn't be grumbling
you shouldn't be grumbling
they shouldn't be grumbling	I shouldn't have grumbled
you shouldn't have grumbled
he shouldn't have grumbled
we shouldn't have grumbled
you shouldn't have grumbled
they shouldn't have grumbled	I shouldn't have been grumbling
you shouldn't have been grumbling
he shouldn't have been grumbling
we shouldn't have been grumbling
you shouldn't have been grumbling
they shouldn't have been grumbling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I grumble?
should you grumble?
should he grumble?
should we grumble?
should you grumble?
should they grumble? 	should I be grumbling?
should you be grumbling?
should he be grumbling?
should we be grumbling?
should you be grumbling?
should they be grumbling? 	should I have grumbled?
should you have grumbled?
should he have grumbled?
should we have grumbled?
should you have grumbled?
should they have grumbled? 	should I have been grumbling?
should you have been grumbling?
should he have been grumbling?
should we have been grumbling?
should you have been grumbling?
should they have been grumbling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I grumble?
shouldn't you grumble?
shouldn't he grumble?
shouldn't we grumble?
shouldn't you grumble?
shouldn't they grumble? 	shouldn't I be grumbling?
shouldn't you be grumbling?
shouldn't he be grumbling?
shouldn't we be grumbling?
shouldn't you be grumbling?
shouldn't they be grumbling? 	shouldn't I have grumbled?
shouldn't you have grumbled?
shouldn't he have grumbled?
shouldn't we have grumbled?
shouldn't you have grumbled?
shouldn't they have grumbled? 	shouldn't I have been grumbling?
shouldn't you have been grumbling?
shouldn't he have been grumbling?
shouldn't we have been grumbling?
shouldn't you have been grumbling?
shouldn't they have been grumbling?