Conjugaison du verbe anglais
COULD SECERN

Verbe régulier : secern - secerned - secerned

Affirmation

Forme simple	Forme 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
Perfect	Perfect en V-ing
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
I couldn't secern you couldn't secern he couldn't secern we couldn't secern you couldn't secern they couldn't secern	I couldn't be secerning you couldn't be secerning he couldn't be secerning we couldn't be secerning you couldn't be secerning they couldn't be secerning
Perfect	Perfect en V-ing
I couldn't have secerned you couldn't have secerned he couldn't have secerned we couldn't have secerned you couldn't have secerned they couldn't have secerned	I couldn't have been secerning you couldn't have been secerning he couldn't have been secerning we couldn't have been secerning you couldn't have been secerning they couldn't have been secerning

Forme interrogative

Forme simple	Forme 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?
Perfect	Perfect en V-ing
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
couldn't I secern? couldn't you secern? couldn't he secern? couldn't we secern? couldn't you secern? couldn't they secern?	couldn't I be secerning? couldn't you be secerning? couldn't he be secerning? couldn't we be secerning? couldn't you be secerning? couldn't they be secerning?
Perfect	Perfect en V-ing
couldn't I have secerned? couldn't you have secerned? couldn't he have secerned? couldn't we have secerned? couldn't you have secerned? couldn't they have secerned?	couldn't I have been secerning? couldn't you have been secerning? couldn't he have been secerning? couldn't we have been secerning? couldn't you have been secerning? couldn't they have been secerning?