English verb conjugation
MUST COMMENT

Regular verb: comment - commented - commented

Affirmation

Simple form	V-ing form
I must comment you must comment she must comment we must comment you must comment they must comment	I must be commenting you must be commenting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she comment? must we comment? must you comment? must they comment?	must I be commenting? must you be commenting? must she 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 she 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 she 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 she 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 she 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 she 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 she have been commenting? mustn't we have been commenting? mustn't you have been commenting? mustn't they have been commenting?