I must expectorate you must expectorate he must expectorate we must expectorate you must expectorate they must expectorate
V-ing form
I must be expectorating you must be expectorating he must be expectorating we must be expectorating you must be expectorating they must be expectorating
Perfect
I must have expectorated you must have expectorated he must have expectorated we must have expectorated you must have expectorated they must have expectorated
V-ing perfect
I must have been expectorating you must have been expectorating he must have been expectorating we must have been expectorating you must have been expectorating they must have been expectorating
Negation
Simple form
I mustn't expectorate you mustn't expectorate he mustn't expectorate we mustn't expectorate you mustn't expectorate they mustn't expectorate
V-ing form
I mustn't be expectorating you mustn't be expectorating he mustn't be expectorating we mustn't be expectorating you mustn't be expectorating they mustn't be expectorating
Perfect
I mustn't have expectorated you mustn't have expectorated he mustn't have expectorated we mustn't have expectorated you mustn't have expectorated they mustn't have expectorated
V-ing perfect
I mustn't have been expectorating you mustn't have been expectorating he mustn't have been expectorating we mustn't have been expectorating you mustn't have been expectorating they mustn't have been expectorating
Interrogative form
Simple form
must I expectorate? must you expectorate? must he expectorate? must we expectorate? must you expectorate? must they expectorate?
V-ing form
must I be expectorating? must you be expectorating? must he be expectorating? must we be expectorating? must you be expectorating? must they be expectorating?
Perfect
must I have expectorated? must you have expectorated? must he have expectorated? must we have expectorated? must you have expectorated? must they have expectorated?
V-ing perfect
must I have been expectorating? must you have been expectorating? must he have been expectorating? must we have been expectorating? must you have been expectorating? must they have been expectorating?
Interro-negative form
Simple form
mustn't I expectorate? mustn't you expectorate? mustn't he expectorate? mustn't we expectorate? mustn't you expectorate? mustn't they expectorate?
V-ing form
mustn't I be expectorating? mustn't you be expectorating? mustn't he be expectorating? mustn't we be expectorating? mustn't you be expectorating? mustn't they be expectorating?
Perfect
mustn't I have expectorated? mustn't you have expectorated? mustn't he have expectorated? mustn't we have expectorated? mustn't you have expectorated? mustn't they have expectorated?
V-ing perfect
mustn't I have been expectorating? mustn't you have been expectorating? mustn't he have been expectorating? mustn't we have been expectorating? mustn't you have been expectorating? mustn't they have been expectorating?