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 must not encode you must not encode she must not encode we must not encode you must not encode they must not encode
V-ing form
I must not be encoding you must not be encoding she must not be encoding we must not be encoding you must not be encoding they must not be encoding
Perfect
I must not have encoded you must not have encoded she must not have encoded we must not have encoded you must not have encoded they must not have encoded
V-ing perfect
I must not have been encoding you must not have been encoding she must not have been encoding we must not have been encoding you must not have been encoding they must not 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
must I not encode? must you not encode? must she not encode? must we not encode? must you not encode? must they not encode?
V-ing form
must I not be encoding? must you not be encoding? must she not be encoding? must we not be encoding? must you not be encoding? must they not be encoding?
Perfect
must I not have encoded? must you not have encoded? must she not have encoded? must we not have encoded? must you not have encoded? must they not have encoded?
V-ing perfect
must I not have been encoding? must you not have been encoding? must she not have been encoding? must we not have been encoding? must you not have been encoding? must they not have been encoding?