I must oppress you must oppress he must oppress we must oppress you must oppress they must oppress
V-ing form
I must be oppressing you must be oppressing he must be oppressing we must be oppressing you must be oppressing they must be oppressing
Perfect
I must have oppressed you must have oppressed he must have oppressed we must have oppressed you must have oppressed they must have oppressed
V-ing perfect
I must have been oppressing you must have been oppressing he must have been oppressing we must have been oppressing you must have been oppressing they must have been oppressing
Negation
Simple form
I must not oppress you must not oppress he must not oppress we must not oppress you must not oppress they must not oppress
V-ing form
I must not be oppressing you must not be oppressing he must not be oppressing we must not be oppressing you must not be oppressing they must not be oppressing
Perfect
I must not have oppressed you must not have oppressed he must not have oppressed we must not have oppressed you must not have oppressed they must not have oppressed
V-ing perfect
I must not have been oppressing you must not have been oppressing he must not have been oppressing we must not have been oppressing you must not have been oppressing they must not have been oppressing
Interrogative form
Simple form
must I oppress? must you oppress? must he oppress? must we oppress? must you oppress? must they oppress?
V-ing form
must I be oppressing? must you be oppressing? must he be oppressing? must we be oppressing? must you be oppressing? must they be oppressing?
Perfect
must I have oppressed? must you have oppressed? must he have oppressed? must we have oppressed? must you have oppressed? must they have oppressed?
V-ing perfect
must I have been oppressing? must you have been oppressing? must he have been oppressing? must we have been oppressing? must you have been oppressing? must they have been oppressing?
Interro-negative form
Simple form
must I not oppress? must you not oppress? must he not oppress? must we not oppress? must you not oppress? must they not oppress?
V-ing form
must I not be oppressing? must you not be oppressing? must he not be oppressing? must we not be oppressing? must you not be oppressing? must they not be oppressing?
Perfect
must I not have oppressed? must you not have oppressed? must he not have oppressed? must we not have oppressed? must you not have oppressed? must they not have oppressed?
V-ing perfect
must I not have been oppressing? must you not have been oppressing? must he not have been oppressing? must we not have been oppressing? must you not have been oppressing? must they not have been oppressing?