English verb conjugation
MUST REVERB

Regular verb: reverb - reverbed - reverbed

Affirmation

Simple form	V-ing form
I must reverb you must reverb he must reverb we must reverb you must reverb they must reverb	I must be reverbing you must be reverbing he must be reverbing we must be reverbing you must be reverbing they must be reverbing
Perfect	V-ing perfect
I must have reverbed you must have reverbed he must have reverbed we must have reverbed you must have reverbed they must have reverbed	I must have been reverbing you must have been reverbing he must have been reverbing we must have been reverbing you must have been reverbing they must have been reverbing

Negation

Simple form	V-ing form
I mustn't reverb you mustn't reverb he mustn't reverb we mustn't reverb you mustn't reverb they mustn't reverb	I mustn't be reverbing you mustn't be reverbing he mustn't be reverbing we mustn't be reverbing you mustn't be reverbing they mustn't be reverbing
Perfect	V-ing perfect
I mustn't have reverbed you mustn't have reverbed he mustn't have reverbed we mustn't have reverbed you mustn't have reverbed they mustn't have reverbed	I mustn't have been reverbing you mustn't have been reverbing he mustn't have been reverbing we mustn't have been reverbing you mustn't have been reverbing they mustn't have been reverbing

Interrogative form

Simple form	V-ing form
must I reverb? must you reverb? must he reverb? must we reverb? must you reverb? must they reverb?	must I be reverbing? must you be reverbing? must he be reverbing? must we be reverbing? must you be reverbing? must they be reverbing?
Perfect	V-ing perfect
must I have reverbed? must you have reverbed? must he have reverbed? must we have reverbed? must you have reverbed? must they have reverbed?	must I have been reverbing? must you have been reverbing? must he have been reverbing? must we have been reverbing? must you have been reverbing? must they have been reverbing?

Interro-negative form

Simple form	V-ing form
mustn't I reverb? mustn't you reverb? mustn't he reverb? mustn't we reverb? mustn't you reverb? mustn't they reverb?	mustn't I be reverbing? mustn't you be reverbing? mustn't he be reverbing? mustn't we be reverbing? mustn't you be reverbing? mustn't they be reverbing?
Perfect	V-ing perfect
mustn't I have reverbed? mustn't you have reverbed? mustn't he have reverbed? mustn't we have reverbed? mustn't you have reverbed? mustn't they have reverbed?	mustn't I have been reverbing? mustn't you have been reverbing? mustn't he have been reverbing? mustn't we have been reverbing? mustn't you have been reverbing? mustn't they have been reverbing?