Regular verb: discern - discerned - discerned
Simple form | V-ing form |
I must discern you must discern he must discern we must discern you must discern they must discern | I must be discerning you must be discerning he must be discerning we must be discerning you must be discerning they must be discerning |
Perfect | V-ing perfect |
I must have discerned you must have discerned he must have discerned we must have discerned you must have discerned they must have discerned | I must have been discerning you must have been discerning he must have been discerning we must have been discerning you must have been discerning they must have been discerning |
Simple form | V-ing form |
I mustn't discern you mustn't discern he mustn't discern we mustn't discern you mustn't discern they mustn't discern | I mustn't be discerning you mustn't be discerning he mustn't be discerning we mustn't be discerning you mustn't be discerning they mustn't be discerning |
Perfect | V-ing perfect |
I mustn't have discerned you mustn't have discerned he mustn't have discerned we mustn't have discerned you mustn't have discerned they mustn't have discerned | I mustn't have been discerning you mustn't have been discerning he mustn't have been discerning we mustn't have been discerning you mustn't have been discerning they mustn't have been discerning |
Simple form | V-ing form |
must I discern? must you discern? must he discern? must we discern? must you discern? must they discern? | must I be discerning? must you be discerning? must he be discerning? must we be discerning? must you be discerning? must they be discerning? |
Perfect | V-ing perfect |
must I have discerned? must you have discerned? must he have discerned? must we have discerned? must you have discerned? must they have discerned? | must I have been discerning? must you have been discerning? must he have been discerning? must we have been discerning? must you have been discerning? must they have been discerning? |
Simple form | V-ing form |
mustn't I discern? mustn't you discern? mustn't he discern? mustn't we discern? mustn't you discern? mustn't they discern? | mustn't I be discerning? mustn't you be discerning? mustn't he be discerning? mustn't we be discerning? mustn't you be discerning? mustn't they be discerning? |
Perfect | V-ing perfect |
mustn't I have discerned? mustn't you have discerned? mustn't he have discerned? mustn't we have discerned? mustn't you have discerned? mustn't they have discerned? | mustn't I have been discerning? mustn't you have been discerning? mustn't he have been discerning? mustn't we have been discerning? mustn't you have been discerning? mustn't they have been discerning? |