should file
Regular verb: file - filed- filed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd file
you'd file
she'd file
we'd file
you'd file
they'd file 	I'd be filing
you'd be filing
she'd be filing
we'd be filing
you'd be filing
they'd be filing	I should've filed
you should've filed
she should've filed
we should've filed
you should've filed
they should've filed	I should've been filing
you should've been filing
she should've been filing
we should've been filing
you should've been filing
they should've been filing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't file
you shouldn't file
she shouldn't file
we shouldn't file
you shouldn't file
they shouldn't file 	I shouldn't be filing
you shouldn't be filing
she shouldn't be filing
we shouldn't be filing
you shouldn't be filing
they shouldn't be filing	I shouldn't have filed
you shouldn't have filed
she shouldn't have filed
we shouldn't have filed
you shouldn't have filed
they shouldn't have filed	I shouldn't have been filing
you shouldn't have been filing
she shouldn't have been filing
we shouldn't have been filing
you shouldn't have been filing
they shouldn't have been filing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I file?
should you file?
should she file?
should we file?
should you file?
should they file? 	should I be filing?
should you be filing?
should she be filing?
should we be filing?
should you be filing?
should they be filing? 	should I have filed?
should you have filed?
should she 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 she have been filing?
should we have been filing?
should you have been filing?
should they have been filing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I file?
shouldn't you file?
shouldn't she file?
shouldn't we file?
shouldn't you file?
shouldn't they file? 	shouldn't I be filing?
shouldn't you be filing?
shouldn't she be filing?
shouldn't we be filing?
shouldn't you be filing?
shouldn't they be filing? 	shouldn't I have filed?
shouldn't you have filed?
shouldn't she have filed?
shouldn't we have filed?
shouldn't you have filed?
shouldn't they have filed? 	shouldn't I have been filing?
shouldn't you have been filing?
shouldn't she have been filing?
shouldn't we have been filing?
shouldn't you have been filing?
shouldn't they have been filing?