could quadrate
Verbe régulier : quadrate - quadrated- quadrated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could quadrate
you could quadrate
she could quadrate
we could quadrate
you could quadrate
they could quadrate 	I could be quadrating
you could be quadrating
she could be quadrating
we could be quadrating
you could be quadrating
they could be quadrating	I could have quadrated
you could have quadrated
she could have quadrated
we could have quadrated
you could have quadrated
they could have quadrated	I could have been quadrating
you could have been quadrating
she could have been quadrating
we could have been quadrating
you could have been quadrating
they could have been quadrating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't quadrate
you couldn't quadrate
she couldn't quadrate
we couldn't quadrate
you couldn't quadrate
they couldn't quadrate 	I couldn't be quadrating
you couldn't be quadrating
she couldn't be quadrating
we couldn't be quadrating
you couldn't be quadrating
they couldn't be quadrating	I couldn't have quadrated
you couldn't have quadrated
she couldn't have quadrated
we couldn't have quadrated
you couldn't have quadrated
they couldn't have quadrated	I couldn't have been quadrating
you couldn't have been quadrating
she couldn't have been quadrating
we couldn't have been quadrating
you couldn't have been quadrating
they couldn't have been quadrating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I quadrate?
could you quadrate?
could she quadrate?
could we quadrate?
could you quadrate?
could they quadrate? 	could I be quadrating?
could you be quadrating?
could she be quadrating?
could we be quadrating?
could you be quadrating?
could they be quadrating? 	could I have quadrated?
could you have quadrated?
could she have quadrated?
could we have quadrated?
could you have quadrated?
could they have quadrated? 	could I have been quadrating?
could you have been quadrating?
could she have been quadrating?
could we have been quadrating?
could you have been quadrating?
could they have been quadrating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I quadrate?
couldn't you quadrate?
couldn't she quadrate?
couldn't we quadrate?
couldn't you quadrate?
couldn't they quadrate? 	couldn't I be quadrating?
couldn't you be quadrating?
couldn't she be quadrating?
couldn't we be quadrating?
couldn't you be quadrating?
couldn't they be quadrating? 	couldn't I have quadrated?
couldn't you have quadrated?
couldn't she have quadrated?
couldn't we have quadrated?
couldn't you have quadrated?
couldn't they have quadrated? 	couldn't I have been quadrating?
couldn't you have been quadrating?
couldn't she have been quadrating?
couldn't we have been quadrating?
couldn't you have been quadrating?
couldn't they have been quadrating?