would niggle
Regular verb: niggle - niggled- niggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd niggle
you'd niggle
he'd niggle
we'd niggle
you'd niggle
they'd niggle 	I'd be niggling
you'd be niggling
he'd be niggling
we'd be niggling
you'd be niggling
they'd be niggling	I would've niggled
you would've niggled
he would've niggled
we would've niggled
you would've niggled
they would've niggled	I would've been niggling
you would've been niggling
he would've been niggling
we would've been niggling
you would've been niggling
they would've been niggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't niggle
you wouldn't niggle
he wouldn't niggle
we wouldn't niggle
you wouldn't niggle
they wouldn't niggle 	I wouldn't be niggling
you wouldn't be niggling
he wouldn't be niggling
we wouldn't be niggling
you wouldn't be niggling
they wouldn't be niggling	I wouldn't have niggled
you wouldn't have niggled
he wouldn't have niggled
we wouldn't have niggled
you wouldn't have niggled
they wouldn't have niggled	I wouldn't have been niggling
you wouldn't have been niggling
he wouldn't have been niggling
we wouldn't have been niggling
you wouldn't have been niggling
they wouldn't have been niggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I niggle?
would you niggle?
would he niggle?
would we niggle?
would you niggle?
would they niggle? 	would I be niggling?
would you be niggling?
would he be niggling?
would we be niggling?
would you be niggling?
would they be niggling? 	would I have niggled?
would you have niggled?
would he have niggled?
would we have niggled?
would you have niggled?
would they have niggled? 	would I have been niggling?
would you have been niggling?
would he have been niggling?
would we have been niggling?
would you have been niggling?
would they have been niggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I niggle?
wouldn't you niggle?
wouldn't he niggle?
wouldn't we niggle?
wouldn't you niggle?
wouldn't they niggle? 	wouldn't I be niggling?
wouldn't you be niggling?
wouldn't he be niggling?
wouldn't we be niggling?
wouldn't you be niggling?
wouldn't they be niggling? 	wouldn't I have niggled?
wouldn't you have niggled?
wouldn't he have niggled?
wouldn't we have niggled?
wouldn't you have niggled?
wouldn't they have niggled? 	wouldn't I have been niggling?
wouldn't you have been niggling?
wouldn't he have been niggling?
wouldn't we have been niggling?
wouldn't you have been niggling?
wouldn't they have been niggling?