I must decant you must decant she must decant we must decant you must decant they must decant
V-ing form
I must be decanting you must be decanting she must be decanting we must be decanting you must be decanting they must be decanting
Perfect
I must have decanted you must have decanted she must have decanted we must have decanted you must have decanted they must have decanted
V-ing perfect
I must have been decanting you must have been decanting she must have been decanting we must have been decanting you must have been decanting they must have been decanting
Negation
Simple form
I mustn't decant you mustn't decant she mustn't decant we mustn't decant you mustn't decant they mustn't decant
V-ing form
I mustn't be decanting you mustn't be decanting she mustn't be decanting we mustn't be decanting you mustn't be decanting they mustn't be decanting
Perfect
I mustn't have decanted you mustn't have decanted she mustn't have decanted we mustn't have decanted you mustn't have decanted they mustn't have decanted
V-ing perfect
I mustn't have been decanting you mustn't have been decanting she mustn't have been decanting we mustn't have been decanting you mustn't have been decanting they mustn't have been decanting
Interrogative form
Simple form
must I decant? must you decant? must she decant? must we decant? must you decant? must they decant?
V-ing form
must I be decanting? must you be decanting? must she be decanting? must we be decanting? must you be decanting? must they be decanting?
Perfect
must I have decanted? must you have decanted? must she have decanted? must we have decanted? must you have decanted? must they have decanted?
V-ing perfect
must I have been decanting? must you have been decanting? must she have been decanting? must we have been decanting? must you have been decanting? must they have been decanting?
Interro-negative form
Simple form
mustn't I decant? mustn't you decant? mustn't she decant? mustn't we decant? mustn't you decant? mustn't they decant?
V-ing form
mustn't I be decanting? mustn't you be decanting? mustn't she be decanting? mustn't we be decanting? mustn't you be decanting? mustn't they be decanting?
Perfect
mustn't I have decanted? mustn't you have decanted? mustn't she have decanted? mustn't we have decanted? mustn't you have decanted? mustn't they have decanted?
V-ing perfect
mustn't I have been decanting? mustn't you have been decanting? mustn't she have been decanting? mustn't we have been decanting? mustn't you have been decanting? mustn't they have been decanting?