could redemonstrate
Verbe régulier : redemonstrate - redemonstrated- redemonstrated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could redemonstrate
you could redemonstrate
he could redemonstrate
we could redemonstrate
you could redemonstrate
they could redemonstrate 	I could be redemonstrating
you could be redemonstrating
he could be redemonstrating
we could be redemonstrating
you could be redemonstrating
they could be redemonstrating	I could have redemonstrated
you could have redemonstrated
he could have redemonstrated
we could have redemonstrated
you could have redemonstrated
they could have redemonstrated	I could have been redemonstrating
you could have been redemonstrating
he could have been redemonstrating
we could have been redemonstrating
you could have been redemonstrating
they could have been redemonstrating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't redemonstrate
you couldn't redemonstrate
he couldn't redemonstrate
we couldn't redemonstrate
you couldn't redemonstrate
they couldn't redemonstrate 	I couldn't be redemonstrating
you couldn't be redemonstrating
he couldn't be redemonstrating
we couldn't be redemonstrating
you couldn't be redemonstrating
they couldn't be redemonstrating	I couldn't have redemonstrated
you couldn't have redemonstrated
he couldn't have redemonstrated
we couldn't have redemonstrated
you couldn't have redemonstrated
they couldn't have redemonstrated	I couldn't have been redemonstrating
you couldn't have been redemonstrating
he couldn't have been redemonstrating
we couldn't have been redemonstrating
you couldn't have been redemonstrating
they couldn't have been redemonstrating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I redemonstrate?
could you redemonstrate?
could he redemonstrate?
could we redemonstrate?
could you redemonstrate?
could they redemonstrate? 	could I be redemonstrating?
could you be redemonstrating?
could he be redemonstrating?
could we be redemonstrating?
could you be redemonstrating?
could they be redemonstrating? 	could I have redemonstrated?
could you have redemonstrated?
could he have redemonstrated?
could we have redemonstrated?
could you have redemonstrated?
could they have redemonstrated? 	could I have been redemonstrating?
could you have been redemonstrating?
could he have been redemonstrating?
could we have been redemonstrating?
could you have been redemonstrating?
could they have been redemonstrating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I redemonstrate?
couldn't you redemonstrate?
couldn't he redemonstrate?
couldn't we redemonstrate?
couldn't you redemonstrate?
couldn't they redemonstrate? 	couldn't I be redemonstrating?
couldn't you be redemonstrating?
couldn't he be redemonstrating?
couldn't we be redemonstrating?
couldn't you be redemonstrating?
couldn't they be redemonstrating? 	couldn't I have redemonstrated?
couldn't you have redemonstrated?
couldn't he have redemonstrated?
couldn't we have redemonstrated?
couldn't you have redemonstrated?
couldn't they have redemonstrated? 	couldn't I have been redemonstrating?
couldn't you have been redemonstrating?
couldn't he have been redemonstrating?
couldn't we have been redemonstrating?
couldn't you have been redemonstrating?
couldn't they have been redemonstrating?