could secern
Verbe régulier : secern - secerned- secerned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could secern
you could secern
he could secern
we could secern
you could secern
they could secern 	I could be secerning
you could be secerning
he could be secerning
we could be secerning
you could be secerning
they could be secerning	I could have secerned
you could have secerned
he could have secerned
we could have secerned
you could have secerned
they could have secerned	I could have been secerning
you could have been secerning
he could have been secerning
we could have been secerning
you could have been secerning
they could have been secerning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not secern
you could not secern
he could not secern
we could not secern
you could not secern
they could not secern 	I could not be secerning
you could not be secerning
he could not be secerning
we could not be secerning
you could not be secerning
they could not be secerning	I could not have secerned
you could not have secerned
he could not have secerned
we could not have secerned
you could not have secerned
they could not have secerned	I could not have been secerning
you could not have been secerning
he could not have been secerning
we could not have been secerning
you could not have been secerning
they could not have been secerning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I secern?
could you secern?
could he secern?
could we secern?
could you secern?
could they secern? 	could I be secerning?
could you be secerning?
could he be secerning?
could we be secerning?
could you be secerning?
could they be secerning? 	could I have secerned?
could you have secerned?
could he have secerned?
could we have secerned?
could you have secerned?
could they have secerned? 	could I have been secerning?
could you have been secerning?
could he have been secerning?
could we have been secerning?
could you have been secerning?
could they have been secerning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not secern?
could you not secern?
could he not secern?
could we not secern?
could you not secern?
could they not secern? 	could I not be secerning?
could you not be secerning?
could he not be secerning?
could we not be secerning?
could you not be secerning?
could they not be secerning? 	could I not have secerned?
could you not have secerned?
could he not have secerned?
could we not have secerned?
could you not have secerned?
could they not have secerned? 	could I not have been secerning?
could you not have been secerning?
could he not have been secerning?
could we not have been secerning?
could you not have been secerning?
could they not have been secerning?