English verb conjugation
MUST COMMEMORATE

Regular verb: commemorate - commemorated - commemorated

Affirmation

Simple form	V-ing form
I must commemorate you must commemorate she must commemorate we must commemorate you must commemorate they must commemorate	I must be commemorating you must be commemorating she must be commemorating we must be commemorating you must be commemorating they must be commemorating
Perfect	V-ing perfect
I must have commemorated you must have commemorated she must have commemorated we must have commemorated you must have commemorated they must have commemorated	I must have been commemorating you must have been commemorating she must have been commemorating we must have been commemorating you must have been commemorating they must have been commemorating

Negation

Simple form	V-ing form
I mustn't commemorate you mustn't commemorate she mustn't commemorate we mustn't commemorate you mustn't commemorate they mustn't commemorate	I mustn't be commemorating you mustn't be commemorating she mustn't be commemorating we mustn't be commemorating you mustn't be commemorating they mustn't be commemorating
Perfect	V-ing perfect
I mustn't have commemorated you mustn't have commemorated she mustn't have commemorated we mustn't have commemorated you mustn't have commemorated they mustn't have commemorated	I mustn't have been commemorating you mustn't have been commemorating she mustn't have been commemorating we mustn't have been commemorating you mustn't have been commemorating they mustn't have been commemorating

Interrogative form

Simple form	V-ing form
must I commemorate? must you commemorate? must she commemorate? must we commemorate? must you commemorate? must they commemorate?	must I be commemorating? must you be commemorating? must she be commemorating? must we be commemorating? must you be commemorating? must they be commemorating?
Perfect	V-ing perfect
must I have commemorated? must you have commemorated? must she have commemorated? must we have commemorated? must you have commemorated? must they have commemorated?	must I have been commemorating? must you have been commemorating? must she have been commemorating? must we have been commemorating? must you have been commemorating? must they have been commemorating?

Interro-negative form

Simple form	V-ing form
mustn't I commemorate? mustn't you commemorate? mustn't she commemorate? mustn't we commemorate? mustn't you commemorate? mustn't they commemorate?	mustn't I be commemorating? mustn't you be commemorating? mustn't she be commemorating? mustn't we be commemorating? mustn't you be commemorating? mustn't they be commemorating?
Perfect	V-ing perfect
mustn't I have commemorated? mustn't you have commemorated? mustn't she have commemorated? mustn't we have commemorated? mustn't you have commemorated? mustn't they have commemorated?	mustn't I have been commemorating? mustn't you have been commemorating? mustn't she have been commemorating? mustn't we have been commemorating? mustn't you have been commemorating? mustn't they have been commemorating?