could unscramble
Regular verb: unscramble - unscrambled- unscrambled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could unscramble
you could unscramble
she could unscramble
we could unscramble
you could unscramble
they could unscramble 	I could be unscrambling
you could be unscrambling
she could be unscrambling
we could be unscrambling
you could be unscrambling
they could be unscrambling	I could have unscrambled
you could have unscrambled
she could have unscrambled
we could have unscrambled
you could have unscrambled
they could have unscrambled	I could have been unscrambling
you could have been unscrambling
she could have been unscrambling
we could have been unscrambling
you could have been unscrambling
they could have been unscrambling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not unscramble
you could not unscramble
she could not unscramble
we could not unscramble
you could not unscramble
they could not unscramble 	I could not be unscrambling
you could not be unscrambling
she could not be unscrambling
we could not be unscrambling
you could not be unscrambling
they could not be unscrambling	I could not have unscrambled
you could not have unscrambled
she could not have unscrambled
we could not have unscrambled
you could not have unscrambled
they could not have unscrambled	I could not have been unscrambling
you could not have been unscrambling
she could not have been unscrambling
we could not have been unscrambling
you could not have been unscrambling
they could not have been unscrambling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I unscramble?
could you unscramble?
could she unscramble?
could we unscramble?
could you unscramble?
could they unscramble? 	could I be unscrambling?
could you be unscrambling?
could she be unscrambling?
could we be unscrambling?
could you be unscrambling?
could they be unscrambling? 	could I have unscrambled?
could you have unscrambled?
could she have unscrambled?
could we have unscrambled?
could you have unscrambled?
could they have unscrambled? 	could I have been unscrambling?
could you have been unscrambling?
could she have been unscrambling?
could we have been unscrambling?
could you have been unscrambling?
could they have been unscrambling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not unscramble?
could you not unscramble?
could she not unscramble?
could we not unscramble?
could you not unscramble?
could they not unscramble? 	could I not be unscrambling?
could you not be unscrambling?
could she not be unscrambling?
could we not be unscrambling?
could you not be unscrambling?
could they not be unscrambling? 	could I not have unscrambled?
could you not have unscrambled?
could she not have unscrambled?
could we not have unscrambled?
could you not have unscrambled?
could they not have unscrambled? 	could I not have been unscrambling?
could you not have been unscrambling?
could she not have been unscrambling?
could we not have been unscrambling?
could you not have been unscrambling?
could they not have been unscrambling?