could solo
Regular verb: solo - soloed- soloed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could solo
you could solo
he could solo
we could solo
you could solo
they could solo 	I could be soloing
you could be soloing
he could be soloing
we could be soloing
you could be soloing
they could be soloing	I could have soloed
you could have soloed
he could have soloed
we could have soloed
you could have soloed
they could have soloed	I could have been soloing
you could have been soloing
he could have been soloing
we could have been soloing
you could have been soloing
they could have been soloing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't solo
you couldn't solo
he couldn't solo
we couldn't solo
you couldn't solo
they couldn't solo 	I couldn't be soloing
you couldn't be soloing
he couldn't be soloing
we couldn't be soloing
you couldn't be soloing
they couldn't be soloing	I couldn't have soloed
you couldn't have soloed
he couldn't have soloed
we couldn't have soloed
you couldn't have soloed
they couldn't have soloed	I couldn't have been soloing
you couldn't have been soloing
he couldn't have been soloing
we couldn't have been soloing
you couldn't have been soloing
they couldn't have been soloing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I solo?
could you solo?
could he solo?
could we solo?
could you solo?
could they solo? 	could I be soloing?
could you be soloing?
could he be soloing?
could we be soloing?
could you be soloing?
could they be soloing? 	could I have soloed?
could you have soloed?
could he have soloed?
could we have soloed?
could you have soloed?
could they have soloed? 	could I have been soloing?
could you have been soloing?
could he have been soloing?
could we have been soloing?
could you have been soloing?
could they have been soloing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I solo?
couldn't you solo?
couldn't he solo?
couldn't we solo?
couldn't you solo?
couldn't they solo? 	couldn't I be soloing?
couldn't you be soloing?
couldn't he be soloing?
couldn't we be soloing?
couldn't you be soloing?
couldn't they be soloing? 	couldn't I have soloed?
couldn't you have soloed?
couldn't he have soloed?
couldn't we have soloed?
couldn't you have soloed?
couldn't they have soloed? 	couldn't I have been soloing?
couldn't you have been soloing?
couldn't he have been soloing?
couldn't we have been soloing?
couldn't you have been soloing?
couldn't they have been soloing?