should cow
Verbo regular: cow - cowed- cowed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should cow
you should cow
he should cow
we should cow
you should cow
they should cow 	I should be cowing
you should be cowing
he should be cowing
we should be cowing
you should be cowing
they should be cowing	I should have cowed
you should have cowed
he should have cowed
we should have cowed
you should have cowed
they should have cowed	I should have been cowing
you should have been cowing
he should have been cowing
we should have been cowing
you should have been cowing
they should have been cowing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not cow
you should not cow
he should not cow
we should not cow
you should not cow
they should not cow 	I should not be cowing
you should not be cowing
he should not be cowing
we should not be cowing
you should not be cowing
they should not be cowing	I should not have cowed
you should not have cowed
he should not have cowed
we should not have cowed
you should not have cowed
they should not have cowed	I should not have been cowing
you should not have been cowing
he should not have been cowing
we should not have been cowing
you should not have been cowing
they should not have been cowing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I cow?
should you cow?
should he cow?
should we cow?
should you cow?
should they cow? 	should I be cowing?
should you be cowing?
should he be cowing?
should we be cowing?
should you be cowing?
should they be cowing? 	should I have cowed?
should you have cowed?
should he have cowed?
should we have cowed?
should you have cowed?
should they have cowed? 	should I have been cowing?
should you have been cowing?
should he have been cowing?
should we have been cowing?
should you have been cowing?
should they have been cowing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not cow?
should you not cow?
should he not cow?
should we not cow?
should you not cow?
should they not cow? 	should I not be cowing?
should you not be cowing?
should he not be cowing?
should we not be cowing?
should you not be cowing?
should they not be cowing? 	should I not have cowed?
should you not have cowed?
should he not have cowed?
should we not have cowed?
should you not have cowed?
should they not have cowed? 	should I not have been cowing?
should you not have been cowing?
should he not have been cowing?
should we not have been cowing?
should you not have been cowing?
should they not have been cowing?