could twaddle
Regular verb: twaddle - twaddled- twaddled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could twaddle
you could twaddle
he could twaddle
we could twaddle
you could twaddle
they could twaddle 	I could be twaddling
you could be twaddling
he could be twaddling
we could be twaddling
you could be twaddling
they could be twaddling	I could have twaddled
you could have twaddled
he could have twaddled
we could have twaddled
you could have twaddled
they could have twaddled	I could have been twaddling
you could have been twaddling
he could have been twaddling
we could have been twaddling
you could have been twaddling
they could have been twaddling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not twaddle
you could not twaddle
he could not twaddle
we could not twaddle
you could not twaddle
they could not twaddle 	I could not be twaddling
you could not be twaddling
he could not be twaddling
we could not be twaddling
you could not be twaddling
they could not be twaddling	I could not have twaddled
you could not have twaddled
he could not have twaddled
we could not have twaddled
you could not have twaddled
they could not have twaddled	I could not have been twaddling
you could not have been twaddling
he could not have been twaddling
we could not have been twaddling
you could not have been twaddling
they could not have been twaddling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I twaddle?
could you twaddle?
could he twaddle?
could we twaddle?
could you twaddle?
could they twaddle? 	could I be twaddling?
could you be twaddling?
could he be twaddling?
could we be twaddling?
could you be twaddling?
could they be twaddling? 	could I have twaddled?
could you have twaddled?
could he have twaddled?
could we have twaddled?
could you have twaddled?
could they have twaddled? 	could I have been twaddling?
could you have been twaddling?
could he have been twaddling?
could we have been twaddling?
could you have been twaddling?
could they have been twaddling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not twaddle?
could you not twaddle?
could he not twaddle?
could we not twaddle?
could you not twaddle?
could they not twaddle? 	could I not be twaddling?
could you not be twaddling?
could he not be twaddling?
could we not be twaddling?
could you not be twaddling?
could they not be twaddling? 	could I not have twaddled?
could you not have twaddled?
could he not have twaddled?
could we not have twaddled?
could you not have twaddled?
could they not have twaddled? 	could I not have been twaddling?
could you not have been twaddling?
could he not have been twaddling?
could we not have been twaddling?
could you not have been twaddling?
could they not have been twaddling?