English verb conjugation
MUST SINGULARIZE

Regular verb: singularize - singularized - singularized

Affirmation

Simple form	V-ing form
I must singularize you must singularize he must singularize we must singularize you must singularize they must singularize	I must be singularizing you must be singularizing he must be singularizing we must be singularizing you must be singularizing they must be singularizing
Perfect	V-ing perfect
I must have singularized you must have singularized he must have singularized we must have singularized you must have singularized they must have singularized	I must have been singularizing you must have been singularizing he must have been singularizing we must have been singularizing you must have been singularizing they must have been singularizing

Negation

Simple form	V-ing form
I mustn't singularize you mustn't singularize he mustn't singularize we mustn't singularize you mustn't singularize they mustn't singularize	I mustn't be singularizing you mustn't be singularizing he mustn't be singularizing we mustn't be singularizing you mustn't be singularizing they mustn't be singularizing
Perfect	V-ing perfect
I mustn't have singularized you mustn't have singularized he mustn't have singularized we mustn't have singularized you mustn't have singularized they mustn't have singularized	I mustn't have been singularizing you mustn't have been singularizing he mustn't have been singularizing we mustn't have been singularizing you mustn't have been singularizing they mustn't have been singularizing

Interrogative form

Simple form	V-ing form
must I singularize? must you singularize? must he singularize? must we singularize? must you singularize? must they singularize?	must I be singularizing? must you be singularizing? must he be singularizing? must we be singularizing? must you be singularizing? must they be singularizing?
Perfect	V-ing perfect
must I have singularized? must you have singularized? must he have singularized? must we have singularized? must you have singularized? must they have singularized?	must I have been singularizing? must you have been singularizing? must he have been singularizing? must we have been singularizing? must you have been singularizing? must they have been singularizing?

Interro-negative form

Simple form	V-ing form
mustn't I singularize? mustn't you singularize? mustn't he singularize? mustn't we singularize? mustn't you singularize? mustn't they singularize?	mustn't I be singularizing? mustn't you be singularizing? mustn't he be singularizing? mustn't we be singularizing? mustn't you be singularizing? mustn't they be singularizing?
Perfect	V-ing perfect
mustn't I have singularized? mustn't you have singularized? mustn't he have singularized? mustn't we have singularized? mustn't you have singularized? mustn't they have singularized?	mustn't I have been singularizing? mustn't you have been singularizing? mustn't he have been singularizing? mustn't we have been singularizing? mustn't you have been singularizing? mustn't they have been singularizing?