I must shoo you must shoo he must shoo we must shoo you must shoo they must shoo
V-ing form
I must be shooing you must be shooing he must be shooing we must be shooing you must be shooing they must be shooing
Perfect
I must have shooed you must have shooed he must have shooed we must have shooed you must have shooed they must have shooed
V-ing perfect
I must have been shooing you must have been shooing he must have been shooing we must have been shooing you must have been shooing they must have been shooing
Negation
Simple form
I must not shoo you must not shoo he must not shoo we must not shoo you must not shoo they must not shoo
V-ing form
I must not be shooing you must not be shooing he must not be shooing we must not be shooing you must not be shooing they must not be shooing
Perfect
I must not have shooed you must not have shooed he must not have shooed we must not have shooed you must not have shooed they must not have shooed
V-ing perfect
I must not have been shooing you must not have been shooing he must not have been shooing we must not have been shooing you must not have been shooing they must not have been shooing
Interrogative form
Simple form
must I shoo? must you shoo? must he shoo? must we shoo? must you shoo? must they shoo?
V-ing form
must I be shooing? must you be shooing? must he be shooing? must we be shooing? must you be shooing? must they be shooing?
Perfect
must I have shooed? must you have shooed? must he have shooed? must we have shooed? must you have shooed? must they have shooed?
V-ing perfect
must I have been shooing? must you have been shooing? must he have been shooing? must we have been shooing? must you have been shooing? must they have been shooing?
Interro-negative form
Simple form
must I not shoo? must you not shoo? must he not shoo? must we not shoo? must you not shoo? must they not shoo?
V-ing form
must I not be shooing? must you not be shooing? must he not be shooing? must we not be shooing? must you not be shooing? must they not be shooing?
Perfect
must I not have shooed? must you not have shooed? must he not have shooed? must we not have shooed? must you not have shooed? must they not have shooed?
V-ing perfect
must I not have been shooing? must you not have been shooing? must he not have been shooing? must we not have been shooing? must you not have been shooing? must they not have been shooing?