English verb conjugation
MUST COMMENT

Regular verb: comment - commented - commented

Affirmation

Simple form	V-ing form
I must comment you must comment he must comment we must comment you must comment they must comment	I must be commenting you must be commenting he must be commenting we must be commenting you must be commenting they must be commenting
Perfect	V-ing perfect
I must have commented you must have commented he must have commented we must have commented you must have commented they must have commented	I must have been commenting you must have been commenting he must have been commenting we must have been commenting you must have been commenting they must have been commenting

Negation

Simple form	V-ing form
I mustn't comment you mustn't comment he mustn't comment we mustn't comment you mustn't comment they mustn't comment	I mustn't be commenting you mustn't be commenting he mustn't be commenting we mustn't be commenting you mustn't be commenting they mustn't be commenting
Perfect	V-ing perfect
I mustn't have commented you mustn't have commented he mustn't have commented we mustn't have commented you mustn't have commented they mustn't have commented	I mustn't have been commenting you mustn't have been commenting he mustn't have been commenting we mustn't have been commenting you mustn't have been commenting they mustn't have been commenting

Interrogative form

Simple form	V-ing form
must I comment? must you comment? must he comment? must we comment? must you comment? must they comment?	must I be commenting? must you be commenting? must he be commenting? must we be commenting? must you be commenting? must they be commenting?
Perfect	V-ing perfect
must I have commented? must you have commented? must he have commented? must we have commented? must you have commented? must they have commented?	must I have been commenting? must you have been commenting? must he have been commenting? must we have been commenting? must you have been commenting? must they have been commenting?

Interro-negative form

Simple form	V-ing form
mustn't I comment? mustn't you comment? mustn't he comment? mustn't we comment? mustn't you comment? mustn't they comment?	mustn't I be commenting? mustn't you be commenting? mustn't he be commenting? mustn't we be commenting? mustn't you be commenting? mustn't they be commenting?
Perfect	V-ing perfect
mustn't I have commented? mustn't you have commented? mustn't he have commented? mustn't we have commented? mustn't you have commented? mustn't they have commented?	mustn't I have been commenting? mustn't you have been commenting? mustn't he have been commenting? mustn't we have been commenting? mustn't you have been commenting? mustn't they have been commenting?