could riddle
Verbo regular: riddle - riddled- riddled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could riddle
you could riddle
he could riddle
we could riddle
you could riddle
they could riddle 	I could be riddling
you could be riddling
he could be riddling
we could be riddling
you could be riddling
they could be riddling	I could have riddled
you could have riddled
he could have riddled
we could have riddled
you could have riddled
they could have riddled	I could have been riddling
you could have been riddling
he could have been riddling
we could have been riddling
you could have been riddling
they could have been riddling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not riddle
you could not riddle
he could not riddle
we could not riddle
you could not riddle
they could not riddle 	I could not be riddling
you could not be riddling
he could not be riddling
we could not be riddling
you could not be riddling
they could not be riddling	I could not have riddled
you could not have riddled
he could not have riddled
we could not have riddled
you could not have riddled
they could not have riddled	I could not have been riddling
you could not have been riddling
he could not have been riddling
we could not have been riddling
you could not have been riddling
they could not have been riddling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I riddle?
could you riddle?
could he riddle?
could we riddle?
could you riddle?
could they riddle? 	could I be riddling?
could you be riddling?
could he be riddling?
could we be riddling?
could you be riddling?
could they be riddling? 	could I have riddled?
could you have riddled?
could he have riddled?
could we have riddled?
could you have riddled?
could they have riddled? 	could I have been riddling?
could you have been riddling?
could he have been riddling?
could we have been riddling?
could you have been riddling?
could they have been riddling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not riddle?
could you not riddle?
could he not riddle?
could we not riddle?
could you not riddle?
could they not riddle? 	could I not be riddling?
could you not be riddling?
could he not be riddling?
could we not be riddling?
could you not be riddling?
could they not be riddling? 	could I not have riddled?
could you not have riddled?
could he not have riddled?
could we not have riddled?
could you not have riddled?
could they not have riddled? 	could I not have been riddling?
could you not have been riddling?
could he not have been riddling?
could we not have been riddling?
could you not have been riddling?
could they not have been riddling?