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