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