English verb conjugation
CAN DISCERN

Regular verb: discern - discerned - discerned

Affirmation

Simple form	V-ing form
I can discern you can discern she can discern we can discern you can discern they can discern	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	V-ing 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	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

Negation

Simple form	V-ing form
I can't discern you can't discern she can't discern we can't discern you can't discern they can't discern	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	V-ing 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	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

Interrogative form

Simple form	V-ing form
can I discern? can you discern? can she discern? can we discern? can you discern? can they discern?	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	V-ing 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?	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?

Interro-negative form

Simple form	V-ing form
can't I discern? can't you discern? can't she discern? can't we discern? can't you discern? can't they discern?	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	V-ing 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?	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?