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