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