could exsert
Verbe régulier : exsert - exserted- exserted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could exsert
you could exsert
he could exsert
we could exsert
you could exsert
they could exsert 	I could be exserting
you could be exserting
he could be exserting
we could be exserting
you could be exserting
they could be exserting	I could have exserted
you could have exserted
he could have exserted
we could have exserted
you could have exserted
they could have exserted	I could have been exserting
you could have been exserting
he could have been exserting
we could have been exserting
you could have been exserting
they could have been exserting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't exsert
you couldn't exsert
he couldn't exsert
we couldn't exsert
you couldn't exsert
they couldn't exsert 	I couldn't be exserting
you couldn't be exserting
he couldn't be exserting
we couldn't be exserting
you couldn't be exserting
they couldn't be exserting	I couldn't have exserted
you couldn't have exserted
he couldn't have exserted
we couldn't have exserted
you couldn't have exserted
they couldn't have exserted	I couldn't have been exserting
you couldn't have been exserting
he couldn't have been exserting
we couldn't have been exserting
you couldn't have been exserting
they couldn't have been exserting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I exsert?
could you exsert?
could he exsert?
could we exsert?
could you exsert?
could they exsert? 	could I be exserting?
could you be exserting?
could he be exserting?
could we be exserting?
could you be exserting?
could they be exserting? 	could I have exserted?
could you have exserted?
could he have exserted?
could we have exserted?
could you have exserted?
could they have exserted? 	could I have been exserting?
could you have been exserting?
could he have been exserting?
could we have been exserting?
could you have been exserting?
could they have been exserting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I exsert?
couldn't you exsert?
couldn't he exsert?
couldn't we exsert?
couldn't you exsert?
couldn't they exsert? 	couldn't I be exserting?
couldn't you be exserting?
couldn't he be exserting?
couldn't we be exserting?
couldn't you be exserting?
couldn't they be exserting? 	couldn't I have exserted?
couldn't you have exserted?
couldn't he have exserted?
couldn't we have exserted?
couldn't you have exserted?
couldn't they have exserted? 	couldn't I have been exserting?
couldn't you have been exserting?
couldn't he have been exserting?
couldn't we have been exserting?
couldn't you have been exserting?
couldn't they have been exserting?