Conjugação do verbo inglês
COULD DISCERN

Verbo regular: discern - discerned - discerned

Afirmação

Forma simple	Forma com 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
Perfeito	Perfeito com V-ing
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

Negação

Forma simple	Forma com 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
Perfeito	Perfeito com V-ing
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

Forma interrogativa

Forma simple	Forma com 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?
Perfeito	Perfeito com V-ing
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?

Forma interro-Negação

Forma simple	Forma com 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?
Perfeito	Perfeito com V-ing
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?