should prewarn
Verbo regular: prewarn - prewarned- prewarned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should prewarn
you should prewarn
he should prewarn
we should prewarn
you should prewarn
they should prewarn 	I should be prewarning
you should be prewarning
he should be prewarning
we should be prewarning
you should be prewarning
they should be prewarning	I should have prewarned
you should have prewarned
he should have prewarned
we should have prewarned
you should have prewarned
they should have prewarned	I should have been prewarning
you should have been prewarning
he should have been prewarning
we should have been prewarning
you should have been prewarning
they should have been prewarning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not prewarn
you should not prewarn
he should not prewarn
we should not prewarn
you should not prewarn
they should not prewarn 	I should not be prewarning
you should not be prewarning
he should not be prewarning
we should not be prewarning
you should not be prewarning
they should not be prewarning	I should not have prewarned
you should not have prewarned
he should not have prewarned
we should not have prewarned
you should not have prewarned
they should not have prewarned	I should not have been prewarning
you should not have been prewarning
he should not have been prewarning
we should not have been prewarning
you should not have been prewarning
they should not have been prewarning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I prewarn?
should you prewarn?
should he prewarn?
should we prewarn?
should you prewarn?
should they prewarn? 	should I be prewarning?
should you be prewarning?
should he be prewarning?
should we be prewarning?
should you be prewarning?
should they be prewarning? 	should I have prewarned?
should you have prewarned?
should he have prewarned?
should we have prewarned?
should you have prewarned?
should they have prewarned? 	should I have been prewarning?
should you have been prewarning?
should he have been prewarning?
should we have been prewarning?
should you have been prewarning?
should they have been prewarning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not prewarn?
should you not prewarn?
should he not prewarn?
should we not prewarn?
should you not prewarn?
should they not prewarn? 	should I not be prewarning?
should you not be prewarning?
should he not be prewarning?
should we not be prewarning?
should you not be prewarning?
should they not be prewarning? 	should I not have prewarned?
should you not have prewarned?
should he not have prewarned?
should we not have prewarned?
should you not have prewarned?
should they not have prewarned? 	should I not have been prewarning?
should you not have been prewarning?
should he not have been prewarning?
should we not have been prewarning?
should you not have been prewarning?
should they not have been prewarning?