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 must not comment you must not comment she must not comment we must not comment you must not comment they must not comment	I must not be commenting you must not be commenting she must not be commenting we must not be commenting you must not be commenting they must not be commenting
Perfect	V-ing perfect
I must not have commented you must not have commented she must not have commented we must not have commented you must not have commented they must not have commented	I must not have been commenting you must not have been commenting she must not have been commenting we must not have been commenting you must not have been commenting they must not 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
must I not comment? must you not comment? must she not comment? must we not comment? must you not comment? must they not comment?	must I not be commenting? must you not be commenting? must she not be commenting? must we not be commenting? must you not be commenting? must they not be commenting?
Perfect	V-ing perfect
must I not have commented? must you not have commented? must she not have commented? must we not have commented? must you not have commented? must they not have commented?	must I not have been commenting? must you not have been commenting? must she not have been commenting? must we not have been commenting? must you not have been commenting? must they not have been commenting?