should crab
Verbo regular: crab - crabbed- crabbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd crab
you'd crab
he'd crab
we'd crab
you'd crab
they'd crab 	I'd be crabbing
you'd be crabbing
he'd be crabbing
we'd be crabbing
you'd be crabbing
they'd be crabbing	I should've crabbed
you should've crabbed
he should've crabbed
we should've crabbed
you should've crabbed
they should've crabbed	I should've been crabbing
you should've been crabbing
he should've been crabbing
we should've been crabbing
you should've been crabbing
they should've been crabbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't crab
you shouldn't crab
he shouldn't crab
we shouldn't crab
you shouldn't crab
they shouldn't crab 	I shouldn't be crabbing
you shouldn't be crabbing
he shouldn't be crabbing
we shouldn't be crabbing
you shouldn't be crabbing
they shouldn't be crabbing	I shouldn't have crabbed
you shouldn't have crabbed
he shouldn't have crabbed
we shouldn't have crabbed
you shouldn't have crabbed
they shouldn't have crabbed	I shouldn't have been crabbing
you shouldn't have been crabbing
he shouldn't have been crabbing
we shouldn't have been crabbing
you shouldn't have been crabbing
they shouldn't have been crabbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I crab?
should you crab?
should he crab?
should we crab?
should you crab?
should they crab? 	should I be crabbing?
should you be crabbing?
should he be crabbing?
should we be crabbing?
should you be crabbing?
should they be crabbing? 	should I have crabbed?
should you have crabbed?
should he have crabbed?
should we have crabbed?
should you have crabbed?
should they have crabbed? 	should I have been crabbing?
should you have been crabbing?
should he have been crabbing?
should we have been crabbing?
should you have been crabbing?
should they have been crabbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I crab?
shouldn't you crab?
shouldn't he crab?
shouldn't we crab?
shouldn't you crab?
shouldn't they crab? 	shouldn't I be crabbing?
shouldn't you be crabbing?
shouldn't he be crabbing?
shouldn't we be crabbing?
shouldn't you be crabbing?
shouldn't they be crabbing? 	shouldn't I have crabbed?
shouldn't you have crabbed?
shouldn't he have crabbed?
shouldn't we have crabbed?
shouldn't you have crabbed?
shouldn't they have crabbed? 	shouldn't I have been crabbing?
shouldn't you have been crabbing?
shouldn't he have been crabbing?
shouldn't we have been crabbing?
shouldn't you have been crabbing?
shouldn't they have been crabbing?