could discern
Verbe régulier : discern - discerned- discerned
Traduction française : discerner - distinguer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could discern
you could discern
she could discern
we could discern
you could discern
they could discern 	I could be discerning
you could be discerning
she could be discerning
we could be discerning
you could be discerning
they could be discerning	I could have discerned
you could have discerned
she could have discerned
we could have discerned
you could have discerned
they could have discerned	I could have been discerning
you could have been discerning
she could have been discerning
we could have been discerning
you could have been discerning
they could have been discerning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't discern
you couldn't discern
she couldn't discern
we couldn't discern
you couldn't discern
they couldn't discern 	I couldn't be discerning
you couldn't be discerning
she couldn't be discerning
we couldn't be discerning
you couldn't be discerning
they couldn't be discerning	I couldn't have discerned
you couldn't have discerned
she couldn't have discerned
we couldn't have discerned
you couldn't have discerned
they couldn't have discerned	I couldn't have been discerning
you couldn't have been discerning
she couldn't have been discerning
we couldn't have been discerning
you couldn't have been discerning
they couldn't have been discerning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I discern?
could you discern?
could she discern?
could we discern?
could you discern?
could they discern? 	could I be discerning?
could you be discerning?
could she be discerning?
could we be discerning?
could you be discerning?
could they be discerning? 	could I have discerned?
could you have discerned?
could she have discerned?
could we have discerned?
could you have discerned?
could they have discerned? 	could I have been discerning?
could you have been discerning?
could she have been discerning?
could we have been discerning?
could you have been discerning?
could they have been discerning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I discern?
couldn't you discern?
couldn't she discern?
couldn't we discern?
couldn't you discern?
couldn't they discern? 	couldn't I be discerning?
couldn't you be discerning?
couldn't she be discerning?
couldn't we be discerning?
couldn't you be discerning?
couldn't they be discerning? 	couldn't I have discerned?
couldn't you have discerned?
couldn't she have discerned?
couldn't we have discerned?
couldn't you have discerned?
couldn't they have discerned? 	couldn't I have been discerning?
couldn't you have been discerning?
couldn't she have been discerning?
couldn't we have been discerning?
couldn't you have been discerning?
couldn't they have been discerning?