I must digest you must digest he must digest we must digest you must digest they must digest
V-ing form
I must be digesting you must be digesting he must be digesting we must be digesting you must be digesting they must be digesting
Perfect
I must have digested you must have digested he must have digested we must have digested you must have digested they must have digested
V-ing perfect
I must have been digesting you must have been digesting he must have been digesting we must have been digesting you must have been digesting they must have been digesting
Negation
Simple form
I mustn't digest you mustn't digest he mustn't digest we mustn't digest you mustn't digest they mustn't digest
V-ing form
I mustn't be digesting you mustn't be digesting he mustn't be digesting we mustn't be digesting you mustn't be digesting they mustn't be digesting
Perfect
I mustn't have digested you mustn't have digested he mustn't have digested we mustn't have digested you mustn't have digested they mustn't have digested
V-ing perfect
I mustn't have been digesting you mustn't have been digesting he mustn't have been digesting we mustn't have been digesting you mustn't have been digesting they mustn't have been digesting
Interrogative form
Simple form
must I digest? must you digest? must he digest? must we digest? must you digest? must they digest?
V-ing form
must I be digesting? must you be digesting? must he be digesting? must we be digesting? must you be digesting? must they be digesting?
Perfect
must I have digested? must you have digested? must he have digested? must we have digested? must you have digested? must they have digested?
V-ing perfect
must I have been digesting? must you have been digesting? must he have been digesting? must we have been digesting? must you have been digesting? must they have been digesting?
Interro-negative form
Simple form
mustn't I digest? mustn't you digest? mustn't he digest? mustn't we digest? mustn't you digest? mustn't they digest?
V-ing form
mustn't I be digesting? mustn't you be digesting? mustn't he be digesting? mustn't we be digesting? mustn't you be digesting? mustn't they be digesting?
Perfect
mustn't I have digested? mustn't you have digested? mustn't he have digested? mustn't we have digested? mustn't you have digested? mustn't they have digested?
V-ing perfect
mustn't I have been digesting? mustn't you have been digesting? mustn't he have been digesting? mustn't we have been digesting? mustn't you have been digesting? mustn't they have been digesting?