could flush
Verbo regular: flush - flushed- flushed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could flush
you could flush
he could flush
we could flush
you could flush
they could flush 	I could be flushing
you could be flushing
he could be flushing
we could be flushing
you could be flushing
they could be flushing	I could have flushed
you could have flushed
he could have flushed
we could have flushed
you could have flushed
they could have flushed	I could have been flushing
you could have been flushing
he could have been flushing
we could have been flushing
you could have been flushing
they could have been flushing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't flush
you couldn't flush
he couldn't flush
we couldn't flush
you couldn't flush
they couldn't flush 	I couldn't be flushing
you couldn't be flushing
he couldn't be flushing
we couldn't be flushing
you couldn't be flushing
they couldn't be flushing	I couldn't have flushed
you couldn't have flushed
he couldn't have flushed
we couldn't have flushed
you couldn't have flushed
they couldn't have flushed	I couldn't have been flushing
you couldn't have been flushing
he couldn't have been flushing
we couldn't have been flushing
you couldn't have been flushing
they couldn't have been flushing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I flush?
could you flush?
could he flush?
could we flush?
could you flush?
could they flush? 	could I be flushing?
could you be flushing?
could he be flushing?
could we be flushing?
could you be flushing?
could they be flushing? 	could I have flushed?
could you have flushed?
could he have flushed?
could we have flushed?
could you have flushed?
could they have flushed? 	could I have been flushing?
could you have been flushing?
could he have been flushing?
could we have been flushing?
could you have been flushing?
could they have been flushing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I flush?
couldn't you flush?
couldn't he flush?
couldn't we flush?
couldn't you flush?
couldn't they flush? 	couldn't I be flushing?
couldn't you be flushing?
couldn't he be flushing?
couldn't we be flushing?
couldn't you be flushing?
couldn't they be flushing? 	couldn't I have flushed?
couldn't you have flushed?
couldn't he have flushed?
couldn't we have flushed?
couldn't you have flushed?
couldn't they have flushed? 	couldn't I have been flushing?
couldn't you have been flushing?
couldn't he have been flushing?
couldn't we have been flushing?
couldn't you have been flushing?
couldn't they have been flushing?