English verb conjugation
MUST SOBER

Regular verb: sober - sobered - sobered

Affirmation

Simple form	V-ing form
I must sober you must sober he must sober we must sober you must sober they must sober	I must be sobering you must be sobering he must be sobering we must be sobering you must be sobering they must be sobering
Perfect	V-ing perfect
I must have sobered you must have sobered he must have sobered we must have sobered you must have sobered they must have sobered	I must have been sobering you must have been sobering he must have been sobering we must have been sobering you must have been sobering they must have been sobering

Negation

Simple form	V-ing form
I mustn't sober you mustn't sober he mustn't sober we mustn't sober you mustn't sober they mustn't sober	I mustn't be sobering you mustn't be sobering he mustn't be sobering we mustn't be sobering you mustn't be sobering they mustn't be sobering
Perfect	V-ing perfect
I mustn't have sobered you mustn't have sobered he mustn't have sobered we mustn't have sobered you mustn't have sobered they mustn't have sobered	I mustn't have been sobering you mustn't have been sobering he mustn't have been sobering we mustn't have been sobering you mustn't have been sobering they mustn't have been sobering

Interrogative form

Simple form	V-ing form
must I sober? must you sober? must he sober? must we sober? must you sober? must they sober?	must I be sobering? must you be sobering? must he be sobering? must we be sobering? must you be sobering? must they be sobering?
Perfect	V-ing perfect
must I have sobered? must you have sobered? must he have sobered? must we have sobered? must you have sobered? must they have sobered?	must I have been sobering? must you have been sobering? must he have been sobering? must we have been sobering? must you have been sobering? must they have been sobering?

Interro-negative form

Simple form	V-ing form
mustn't I sober? mustn't you sober? mustn't he sober? mustn't we sober? mustn't you sober? mustn't they sober?	mustn't I be sobering? mustn't you be sobering? mustn't he be sobering? mustn't we be sobering? mustn't you be sobering? mustn't they be sobering?
Perfect	V-ing perfect
mustn't I have sobered? mustn't you have sobered? mustn't he have sobered? mustn't we have sobered? mustn't you have sobered? mustn't they have sobered?	mustn't I have been sobering? mustn't you have been sobering? mustn't he have been sobering? mustn't we have been sobering? mustn't you have been sobering? mustn't they have been sobering?