I must guide you must guide he must guide we must guide you must guide they must guide
V-ing form
I must be guiding you must be guiding he must be guiding we must be guiding you must be guiding they must be guiding
Perfect
I must have guided you must have guided he 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 he 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 he 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 he 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 he 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 he 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 he guide? must we guide? must you guide? must they guide?
V-ing form
must I be guiding? must you be guiding? must he be guiding? must we be guiding? must you be guiding? must they be guiding?
Perfect
must I have guided? must you have guided? must he 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 he 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 he 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 he 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 he 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 he have been guiding? mustn't we have been guiding? mustn't you have been guiding? mustn't they have been guiding?