could fiddle
Regular verb: fiddle - fiddled- fiddled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could fiddle
you could fiddle
she could fiddle
we could fiddle
you could fiddle
they could fiddle 	I could be fiddling
you could be fiddling
she could be fiddling
we could be fiddling
you could be fiddling
they could be fiddling	I could have fiddled
you could have fiddled
she could have fiddled
we could have fiddled
you could have fiddled
they could have fiddled	I could have been fiddling
you could have been fiddling
she could have been fiddling
we could have been fiddling
you could have been fiddling
they could have been fiddling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not fiddle
you could not fiddle
she could not fiddle
we could not fiddle
you could not fiddle
they could not fiddle 	I could not be fiddling
you could not be fiddling
she could not be fiddling
we could not be fiddling
you could not be fiddling
they could not be fiddling	I could not have fiddled
you could not have fiddled
she could not have fiddled
we could not have fiddled
you could not have fiddled
they could not have fiddled	I could not have been fiddling
you could not have been fiddling
she could not have been fiddling
we could not have been fiddling
you could not have been fiddling
they could not have been fiddling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I fiddle?
could you fiddle?
could she fiddle?
could we fiddle?
could you fiddle?
could they fiddle? 	could I be fiddling?
could you be fiddling?
could she be fiddling?
could we be fiddling?
could you be fiddling?
could they be fiddling? 	could I have fiddled?
could you have fiddled?
could she have fiddled?
could we have fiddled?
could you have fiddled?
could they have fiddled? 	could I have been fiddling?
could you have been fiddling?
could she have been fiddling?
could we have been fiddling?
could you have been fiddling?
could they have been fiddling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not fiddle?
could you not fiddle?
could she not fiddle?
could we not fiddle?
could you not fiddle?
could they not fiddle? 	could I not be fiddling?
could you not be fiddling?
could she not be fiddling?
could we not be fiddling?
could you not be fiddling?
could they not be fiddling? 	could I not have fiddled?
could you not have fiddled?
could she not have fiddled?
could we not have fiddled?
could you not have fiddled?
could they not have fiddled? 	could I not have been fiddling?
could you not have been fiddling?
could she not have been fiddling?
could we not have been fiddling?
could you not have been fiddling?
could they not have been fiddling?