could four-flush
Verbe régulier : four-flush - four-flushed- four-flushed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could four-flush
you could four-flush
she could four-flush
we could four-flush
you could four-flush
they could four-flush 	I could be four-flushing
you could be four-flushing
she could be four-flushing
we could be four-flushing
you could be four-flushing
they could be four-flushing	I could have four-flushed
you could have four-flushed
she could have four-flushed
we could have four-flushed
you could have four-flushed
they could have four-flushed	I could have been four-flushing
you could have been four-flushing
she could have been four-flushing
we could have been four-flushing
you could have been four-flushing
they could have been four-flushing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't four-flush
you couldn't four-flush
she couldn't four-flush
we couldn't four-flush
you couldn't four-flush
they couldn't four-flush 	I couldn't be four-flushing
you couldn't be four-flushing
she couldn't be four-flushing
we couldn't be four-flushing
you couldn't be four-flushing
they couldn't be four-flushing	I couldn't have four-flushed
you couldn't have four-flushed
she couldn't have four-flushed
we couldn't have four-flushed
you couldn't have four-flushed
they couldn't have four-flushed	I couldn't have been four-flushing
you couldn't have been four-flushing
she couldn't have been four-flushing
we couldn't have been four-flushing
you couldn't have been four-flushing
they couldn't have been four-flushing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I four-flush?
could you four-flush?
could she four-flush?
could we four-flush?
could you four-flush?
could they four-flush? 	could I be four-flushing?
could you be four-flushing?
could she be four-flushing?
could we be four-flushing?
could you be four-flushing?
could they be four-flushing? 	could I have four-flushed?
could you have four-flushed?
could she have four-flushed?
could we have four-flushed?
could you have four-flushed?
could they have four-flushed? 	could I have been four-flushing?
could you have been four-flushing?
could she have been four-flushing?
could we have been four-flushing?
could you have been four-flushing?
could they have been four-flushing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I four-flush?
couldn't you four-flush?
couldn't she four-flush?
couldn't we four-flush?
couldn't you four-flush?
couldn't they four-flush? 	couldn't I be four-flushing?
couldn't you be four-flushing?
couldn't she be four-flushing?
couldn't we be four-flushing?
couldn't you be four-flushing?
couldn't they be four-flushing? 	couldn't I have four-flushed?
couldn't you have four-flushed?
couldn't she have four-flushed?
couldn't we have four-flushed?
couldn't you have four-flushed?
couldn't they have four-flushed? 	couldn't I have been four-flushing?
couldn't you have been four-flushing?
couldn't she have been four-flushing?
couldn't we have been four-flushing?
couldn't you have been four-flushing?
couldn't they have been four-flushing?