could scotch
Regular verb: scotch - scotched- scotched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could scotch
you could scotch
she could scotch
we could scotch
you could scotch
they could scotch 	I could be scotching
you could be scotching
she could be scotching
we could be scotching
you could be scotching
they could be scotching	I could have scotched
you could have scotched
she could have scotched
we could have scotched
you could have scotched
they could have scotched	I could have been scotching
you could have been scotching
she could have been scotching
we could have been scotching
you could have been scotching
they could have been scotching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't scotch
you couldn't scotch
she couldn't scotch
we couldn't scotch
you couldn't scotch
they couldn't scotch 	I couldn't be scotching
you couldn't be scotching
she couldn't be scotching
we couldn't be scotching
you couldn't be scotching
they couldn't be scotching	I couldn't have scotched
you couldn't have scotched
she couldn't have scotched
we couldn't have scotched
you couldn't have scotched
they couldn't have scotched	I couldn't have been scotching
you couldn't have been scotching
she couldn't have been scotching
we couldn't have been scotching
you couldn't have been scotching
they couldn't have been scotching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I scotch?
could you scotch?
could she scotch?
could we scotch?
could you scotch?
could they scotch? 	could I be scotching?
could you be scotching?
could she be scotching?
could we be scotching?
could you be scotching?
could they be scotching? 	could I have scotched?
could you have scotched?
could she have scotched?
could we have scotched?
could you have scotched?
could they have scotched? 	could I have been scotching?
could you have been scotching?
could she have been scotching?
could we have been scotching?
could you have been scotching?
could they have been scotching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I scotch?
couldn't you scotch?
couldn't she scotch?
couldn't we scotch?
couldn't you scotch?
couldn't they scotch? 	couldn't I be scotching?
couldn't you be scotching?
couldn't she be scotching?
couldn't we be scotching?
couldn't you be scotching?
couldn't they be scotching? 	couldn't I have scotched?
couldn't you have scotched?
couldn't she have scotched?
couldn't we have scotched?
couldn't you have scotched?
couldn't they have scotched? 	couldn't I have been scotching?
couldn't you have been scotching?
couldn't she have been scotching?
couldn't we have been scotching?
couldn't you have been scotching?
couldn't they have been scotching?