I must instigate you must instigate he must instigate we must instigate you must instigate they must instigate
V-ing form
I must be instigating you must be instigating he must be instigating we must be instigating you must be instigating they must be instigating
Perfect
I must have instigated you must have instigated he must have instigated we must have instigated you must have instigated they must have instigated
V-ing perfect
I must have been instigating you must have been instigating he must have been instigating we must have been instigating you must have been instigating they must have been instigating
Negation
Simple form
I must not instigate you must not instigate he must not instigate we must not instigate you must not instigate they must not instigate
V-ing form
I must not be instigating you must not be instigating he must not be instigating we must not be instigating you must not be instigating they must not be instigating
Perfect
I must not have instigated you must not have instigated he must not have instigated we must not have instigated you must not have instigated they must not have instigated
V-ing perfect
I must not have been instigating you must not have been instigating he must not have been instigating we must not have been instigating you must not have been instigating they must not have been instigating
Interrogative form
Simple form
must I instigate? must you instigate? must he instigate? must we instigate? must you instigate? must they instigate?
V-ing form
must I be instigating? must you be instigating? must he be instigating? must we be instigating? must you be instigating? must they be instigating?
Perfect
must I have instigated? must you have instigated? must he have instigated? must we have instigated? must you have instigated? must they have instigated?
V-ing perfect
must I have been instigating? must you have been instigating? must he have been instigating? must we have been instigating? must you have been instigating? must they have been instigating?
Interro-negative form
Simple form
must I not instigate? must you not instigate? must he not instigate? must we not instigate? must you not instigate? must they not instigate?
V-ing form
must I not be instigating? must you not be instigating? must he not be instigating? must we not be instigating? must you not be instigating? must they not be instigating?
Perfect
must I not have instigated? must you not have instigated? must he not have instigated? must we not have instigated? must you not have instigated? must they not have instigated?
V-ing perfect
must I not have been instigating? must you not have been instigating? must he not have been instigating? must we not have been instigating? must you not have been instigating? must they not have been instigating?