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