should file
Verbo regular: file - filed- filed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should file
you should file
he should file
we should file
you should file
they should file 	I should be filing
you should be filing
he should be filing
we should be filing
you should be filing
they should be filing	I should have filed
you should have filed
he should have filed
we should have filed
you should have filed
they should have filed	I should have been filing
you should have been filing
he should have been filing
we should have been filing
you should have been filing
they should have been filing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not file
you should not file
he should not file
we should not file
you should not file
they should not file 	I should not be filing
you should not be filing
he should not be filing
we should not be filing
you should not be filing
they should not be filing	I should not have filed
you should not have filed
he should not have filed
we should not have filed
you should not have filed
they should not have filed	I should not have been filing
you should not have been filing
he should not have been filing
we should not have been filing
you should not have been filing
they should not have been filing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I file?
should you file?
should he file?
should we file?
should you file?
should they file? 	should I be filing?
should you be filing?
should he be filing?
should we be filing?
should you be filing?
should they be filing? 	should I have filed?
should you have filed?
should he have filed?
should we have filed?
should you have filed?
should they have filed? 	should I have been filing?
should you have been filing?
should he have been filing?
should we have been filing?
should you have been filing?
should they have been filing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not file?
should you not file?
should he not file?
should we not file?
should you not file?
should they not file? 	should I not be filing?
should you not be filing?
should he not be filing?
should we not be filing?
should you not be filing?
should they not be filing? 	should I not have filed?
should you not have filed?
should he not have filed?
should we not have filed?
should you not have filed?
should they not have filed? 	should I not have been filing?
should you not have been filing?
should he not have been filing?
should we not have been filing?
should you not have been filing?
should they not have been filing?