should whistle
Verbo regular: whistle - whistled- whistled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd whistle
you'd whistle
he'd whistle
we'd whistle
you'd whistle
they'd whistle 	I'd be whistling
you'd be whistling
he'd be whistling
we'd be whistling
you'd be whistling
they'd be whistling	I should've whistled
you should've whistled
he should've whistled
we should've whistled
you should've whistled
they should've whistled	I should've been whistling
you should've been whistling
he should've been whistling
we should've been whistling
you should've been whistling
they should've been whistling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't whistle
you shouldn't whistle
he shouldn't whistle
we shouldn't whistle
you shouldn't whistle
they shouldn't whistle 	I shouldn't be whistling
you shouldn't be whistling
he shouldn't be whistling
we shouldn't be whistling
you shouldn't be whistling
they shouldn't be whistling	I shouldn't have whistled
you shouldn't have whistled
he shouldn't have whistled
we shouldn't have whistled
you shouldn't have whistled
they shouldn't have whistled	I shouldn't have been whistling
you shouldn't have been whistling
he shouldn't have been whistling
we shouldn't have been whistling
you shouldn't have been whistling
they shouldn't have been whistling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I whistle?
should you whistle?
should he whistle?
should we whistle?
should you whistle?
should they whistle? 	should I be whistling?
should you be whistling?
should he be whistling?
should we be whistling?
should you be whistling?
should they be whistling? 	should I have whistled?
should you have whistled?
should he have whistled?
should we have whistled?
should you have whistled?
should they have whistled? 	should I have been whistling?
should you have been whistling?
should he have been whistling?
should we have been whistling?
should you have been whistling?
should they have been whistling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I whistle?
shouldn't you whistle?
shouldn't he whistle?
shouldn't we whistle?
shouldn't you whistle?
shouldn't they whistle? 	shouldn't I be whistling?
shouldn't you be whistling?
shouldn't he be whistling?
shouldn't we be whistling?
shouldn't you be whistling?
shouldn't they be whistling? 	shouldn't I have whistled?
shouldn't you have whistled?
shouldn't he have whistled?
shouldn't we have whistled?
shouldn't you have whistled?
shouldn't they have whistled? 	shouldn't I have been whistling?
shouldn't you have been whistling?
shouldn't he have been whistling?
shouldn't we have been whistling?
shouldn't you have been whistling?
shouldn't they have been whistling?