English verb conjugation
WOULD FAIL

Regular verb: fail - failed - failed

Affirmation

Simple form	V-ing form
I'd fail you'd fail he'd fail we'd fail you'd fail they'd fail	I'd be failing you'd be failing he'd be failing we'd be failing you'd be failing they'd be failing
Perfect	V-ing perfect
I would've failed you would've failed he would've failed we would've failed you would've failed they would've failed	I would've been failing you would've been failing he would've been failing we would've been failing you would've been failing they would've been failing

Negation

Simple form	V-ing form
I wouldn't fail you wouldn't fail he wouldn't fail we wouldn't fail you wouldn't fail they wouldn't fail	I wouldn't be failing you wouldn't be failing he wouldn't be failing we wouldn't be failing you wouldn't be failing they wouldn't be failing
Perfect	V-ing perfect
I wouldn't have failed you wouldn't have failed he wouldn't have failed we wouldn't have failed you wouldn't have failed they wouldn't have failed	I wouldn't have been failing you wouldn't have been failing he wouldn't have been failing we wouldn't have been failing you wouldn't have been failing they wouldn't have been failing

Interrogative form

Simple form	V-ing form
would I fail? would you fail? would he fail? would we fail? would you fail? would they fail?	would I be failing? would you be failing? would he be failing? would we be failing? would you be failing? would they be failing?
Perfect	V-ing perfect
would I have failed? would you have failed? would he have failed? would we have failed? would you have failed? would they have failed?	would I have been failing? would you have been failing? would he have been failing? would we have been failing? would you have been failing? would they have been failing?

Interro-negative form

Simple form	V-ing form
wouldn't I fail? wouldn't you fail? wouldn't he fail? wouldn't we fail? wouldn't you fail? wouldn't they fail?	wouldn't I be failing? wouldn't you be failing? wouldn't he be failing? wouldn't we be failing? wouldn't you be failing? wouldn't they be failing?
Perfect	V-ing perfect
wouldn't I have failed? wouldn't you have failed? wouldn't he have failed? wouldn't we have failed? wouldn't you have failed? wouldn't they have failed?	wouldn't I have been failing? wouldn't you have been failing? wouldn't he have been failing? wouldn't we have been failing? wouldn't you have been failing? wouldn't they have been failing?