I must fustigate you must fustigate he must fustigate we must fustigate you must fustigate they must fustigate
V-ing form
I must be fustigating you must be fustigating he must be fustigating we must be fustigating you must be fustigating they must be fustigating
Perfect
I must have fustigated you must have fustigated he must have fustigated we must have fustigated you must have fustigated they must have fustigated
V-ing perfect
I must have been fustigating you must have been fustigating he must have been fustigating we must have been fustigating you must have been fustigating they must have been fustigating
Negation
Simple form
I must not fustigate you must not fustigate he must not fustigate we must not fustigate you must not fustigate they must not fustigate
V-ing form
I must not be fustigating you must not be fustigating he must not be fustigating we must not be fustigating you must not be fustigating they must not be fustigating
Perfect
I must not have fustigated you must not have fustigated he must not have fustigated we must not have fustigated you must not have fustigated they must not have fustigated
V-ing perfect
I must not have been fustigating you must not have been fustigating he must not have been fustigating we must not have been fustigating you must not have been fustigating they must not have been fustigating
Interrogative form
Simple form
must I fustigate? must you fustigate? must he fustigate? must we fustigate? must you fustigate? must they fustigate?
V-ing form
must I be fustigating? must you be fustigating? must he be fustigating? must we be fustigating? must you be fustigating? must they be fustigating?
Perfect
must I have fustigated? must you have fustigated? must he have fustigated? must we have fustigated? must you have fustigated? must they have fustigated?
V-ing perfect
must I have been fustigating? must you have been fustigating? must he have been fustigating? must we have been fustigating? must you have been fustigating? must they have been fustigating?
Interro-negative form
Simple form
must I not fustigate? must you not fustigate? must he not fustigate? must we not fustigate? must you not fustigate? must they not fustigate?
V-ing form
must I not be fustigating? must you not be fustigating? must he not be fustigating? must we not be fustigating? must you not be fustigating? must they not be fustigating?
Perfect
must I not have fustigated? must you not have fustigated? must he not have fustigated? must we not have fustigated? must you not have fustigated? must they not have fustigated?
V-ing perfect
must I not have been fustigating? must you not have been fustigating? must he not have been fustigating? must we not have been fustigating? must you not have been fustigating? must they not have been fustigating?