I can discern you can discern he can discern we can discern you can discern they can discern
Forma com V-ing
I can be discerning you can be discerning he can be discerning we can be discerning you can be discerning they can be discerning
Perfeito
I can have discerned you can have discerned he can have discerned we can have discerned you can have discerned they can have discerned
Perfeito com V-ing
I can have been discerning you can have been discerning he can have been discerning we can have been discerning you can have been discerning they can have been discerning
Negação
Forma simple
I can't discern you can't discern he can't discern we can't discern you can't discern they can't discern
Forma com V-ing
I can't be discerning you can't be discerning he can't be discerning we can't be discerning you can't be discerning they can't be discerning
Perfeito
I can't have discerned you can't have discerned he can't have discerned we can't have discerned you can't have discerned they can't have discerned
Perfeito com V-ing
I can't have been discerning you can't have been discerning he can't have been discerning we can't have been discerning you can't have been discerning they can't have been discerning
Forma interrogativa
Forma simple
can I discern? can you discern? can he discern? can we discern? can you discern? can they discern?
Forma com V-ing
can I be discerning? can you be discerning? can he be discerning? can we be discerning? can you be discerning? can they be discerning?
Perfeito
can I have discerned? can you have discerned? can he have discerned? can we have discerned? can you have discerned? can they have discerned?
Perfeito com V-ing
can I have been discerning? can you have been discerning? can he have been discerning? can we have been discerning? can you have been discerning? can they have been discerning?
Forma interro-Negação
Forma simple
can't I discern? can't you discern? can't he discern? can't we discern? can't you discern? can't they discern?
Forma com V-ing
can't I be discerning? can't you be discerning? can't he be discerning? can't we be discerning? can't you be discerning? can't they be discerning?
Perfeito
can't I have discerned? can't you have discerned? can't he have discerned? can't we have discerned? can't you have discerned? can't they have discerned?
Perfeito com V-ing
can't I have been discerning? can't you have been discerning? can't he have been discerning? can't we have been discerning? can't you have been discerning? can't they have been discerning?