English verb conjugation
CAN DISCERN

Regular verb: discern - discerned - discerned

Affirmation

Simple form	V-ing form
I can discern you can discern he can discern we can discern you can discern they can discern	I can be discerning you can be discerning he 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 he 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 he 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 cannot discern you cannot discern he cannot discern we cannot discern you cannot discern they cannot discern	I cannot be discerning you cannot be discerning he cannot be discerning we cannot be discerning you cannot be discerning they cannot be discerning
Perfect	V-ing perfect
I cannot have discerned you cannot have discerned he cannot have discerned we cannot have discerned you cannot have discerned they cannot have discerned	I cannot have been discerning you cannot have been discerning he cannot have been discerning we cannot have been discerning you cannot have been discerning they cannot have been discerning

Interrogative form

Simple form	V-ing form
can I discern? can you discern? can he discern? can we discern? can you discern? can they discern?	can I be discerning? can you be discerning? can he 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 he 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 he 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 I not discern? can you not discern? can he not discern? can we not discern? can you not discern? can they not discern?	can I not be discerning? can you not be discerning? can he not be discerning? can we not be discerning? can you not be discerning? can they not be discerning?
Perfect	V-ing perfect
can I not have discerned? can you not have discerned? can he not have discerned? can we not have discerned? can you not have discerned? can they not have discerned?	can I not have been discerning? can you not have been discerning? can he not have been discerning? can we not have been discerning? can you not have been discerning? can they not have been discerning?