can scupper
Regular verb: scupper - scuppered- scuppered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can scupper
you can scupper
she can scupper
we can scupper
you can scupper
they can scupper 	I can be scuppering
you can be scuppering
she can be scuppering
we can be scuppering
you can be scuppering
they can be scuppering	I can have scuppered
you can have scuppered
she can have scuppered
we can have scuppered
you can have scuppered
they can have scuppered	I can have been scuppering
you can have been scuppering
she can have been scuppering
we can have been scuppering
you can have been scuppering
they can have been scuppering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't scupper
you can't scupper
she can't scupper
we can't scupper
you can't scupper
they can't scupper 	I can't be scuppering
you can't be scuppering
she can't be scuppering
we can't be scuppering
you can't be scuppering
they can't be scuppering	I can't have scuppered
you can't have scuppered
she can't have scuppered
we can't have scuppered
you can't have scuppered
they can't have scuppered	I can't have been scuppering
you can't have been scuppering
she can't have been scuppering
we can't have been scuppering
you can't have been scuppering
they can't have been scuppering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I scupper?
can you scupper?
can she scupper?
can we scupper?
can you scupper?
can they scupper? 	can I be scuppering?
can you be scuppering?
can she be scuppering?
can we be scuppering?
can you be scuppering?
can they be scuppering? 	can I have scuppered?
can you have scuppered?
can she have scuppered?
can we have scuppered?
can you have scuppered?
can they have scuppered? 	can I have been scuppering?
can you have been scuppering?
can she have been scuppering?
can we have been scuppering?
can you have been scuppering?
can they have been scuppering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I scupper?
can't you scupper?
can't she scupper?
can't we scupper?
can't you scupper?
can't they scupper? 	can't I be scuppering?
can't you be scuppering?
can't she be scuppering?
can't we be scuppering?
can't you be scuppering?
can't they be scuppering? 	can't I have scuppered?
can't you have scuppered?
can't she have scuppered?
can't we have scuppered?
can't you have scuppered?
can't they have scuppered? 	can't I have been scuppering?
can't you have been scuppering?
can't she have been scuppering?
can't we have been scuppering?
can't you have been scuppering?
can't they have been scuppering?