should ping-pong
Regular verb: ping-pong - ping-ponged- ping-ponged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd ping-pong
you'd ping-pong
he'd ping-pong
we'd ping-pong
you'd ping-pong
they'd ping-pong 	I'd be ping-ponging
you'd be ping-ponging
he'd be ping-ponging
we'd be ping-ponging
you'd be ping-ponging
they'd be ping-ponging	I should've ping-ponged
you should've ping-ponged
he should've ping-ponged
we should've ping-ponged
you should've ping-ponged
they should've ping-ponged	I should've been ping-ponging
you should've been ping-ponging
he should've been ping-ponging
we should've been ping-ponging
you should've been ping-ponging
they should've been ping-ponging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't ping-pong
you shouldn't ping-pong
he shouldn't ping-pong
we shouldn't ping-pong
you shouldn't ping-pong
they shouldn't ping-pong 	I shouldn't be ping-ponging
you shouldn't be ping-ponging
he shouldn't be ping-ponging
we shouldn't be ping-ponging
you shouldn't be ping-ponging
they shouldn't be ping-ponging	I shouldn't have ping-ponged
you shouldn't have ping-ponged
he shouldn't have ping-ponged
we shouldn't have ping-ponged
you shouldn't have ping-ponged
they shouldn't have ping-ponged	I shouldn't have been ping-ponging
you shouldn't have been ping-ponging
he shouldn't have been ping-ponging
we shouldn't have been ping-ponging
you shouldn't have been ping-ponging
they shouldn't have been ping-ponging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I ping-pong?
should you ping-pong?
should he ping-pong?
should we ping-pong?
should you ping-pong?
should they ping-pong? 	should I be ping-ponging?
should you be ping-ponging?
should he be ping-ponging?
should we be ping-ponging?
should you be ping-ponging?
should they be ping-ponging? 	should I have ping-ponged?
should you have ping-ponged?
should he have ping-ponged?
should we have ping-ponged?
should you have ping-ponged?
should they have ping-ponged? 	should I have been ping-ponging?
should you have been ping-ponging?
should he have been ping-ponging?
should we have been ping-ponging?
should you have been ping-ponging?
should they have been ping-ponging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I ping-pong?
shouldn't you ping-pong?
shouldn't he ping-pong?
shouldn't we ping-pong?
shouldn't you ping-pong?
shouldn't they ping-pong? 	shouldn't I be ping-ponging?
shouldn't you be ping-ponging?
shouldn't he be ping-ponging?
shouldn't we be ping-ponging?
shouldn't you be ping-ponging?
shouldn't they be ping-ponging? 	shouldn't I have ping-ponged?
shouldn't you have ping-ponged?
shouldn't he have ping-ponged?
shouldn't we have ping-ponged?
shouldn't you have ping-ponged?
shouldn't they have ping-ponged? 	shouldn't I have been ping-ponging?
shouldn't you have been ping-ponging?
shouldn't he have been ping-ponging?
shouldn't we have been ping-ponging?
shouldn't you have been ping-ponging?
shouldn't they have been ping-ponging?