could scrag
Regular verb: scrag - scragged- scragged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could scrag
you could scrag
he could scrag
we could scrag
you could scrag
they could scrag 	I could be scragging
you could be scragging
he could be scragging
we could be scragging
you could be scragging
they could be scragging	I could have scragged
you could have scragged
he could have scragged
we could have scragged
you could have scragged
they could have scragged	I could have been scragging
you could have been scragging
he could have been scragging
we could have been scragging
you could have been scragging
they could have been scragging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't scrag
you couldn't scrag
he couldn't scrag
we couldn't scrag
you couldn't scrag
they couldn't scrag 	I couldn't be scragging
you couldn't be scragging
he couldn't be scragging
we couldn't be scragging
you couldn't be scragging
they couldn't be scragging	I couldn't have scragged
you couldn't have scragged
he couldn't have scragged
we couldn't have scragged
you couldn't have scragged
they couldn't have scragged	I couldn't have been scragging
you couldn't have been scragging
he couldn't have been scragging
we couldn't have been scragging
you couldn't have been scragging
they couldn't have been scragging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I scrag?
could you scrag?
could he scrag?
could we scrag?
could you scrag?
could they scrag? 	could I be scragging?
could you be scragging?
could he be scragging?
could we be scragging?
could you be scragging?
could they be scragging? 	could I have scragged?
could you have scragged?
could he have scragged?
could we have scragged?
could you have scragged?
could they have scragged? 	could I have been scragging?
could you have been scragging?
could he have been scragging?
could we have been scragging?
could you have been scragging?
could they have been scragging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I scrag?
couldn't you scrag?
couldn't he scrag?
couldn't we scrag?
couldn't you scrag?
couldn't they scrag? 	couldn't I be scragging?
couldn't you be scragging?
couldn't he be scragging?
couldn't we be scragging?
couldn't you be scragging?
couldn't they be scragging? 	couldn't I have scragged?
couldn't you have scragged?
couldn't he have scragged?
couldn't we have scragged?
couldn't you have scragged?
couldn't they have scragged? 	couldn't I have been scragging?
couldn't you have been scragging?
couldn't he have been scragging?
couldn't we have been scragging?
couldn't you have been scragging?
couldn't they have been scragging?