I can oppress you can oppress she can oppress we can oppress you can oppress they can oppress
V-ing form
I can be oppressing you can be oppressing she can be oppressing we can be oppressing you can be oppressing they can be oppressing
Perfect
I can have oppressed you can have oppressed she can have oppressed we can have oppressed you can have oppressed they can have oppressed
V-ing perfect
I can have been oppressing you can have been oppressing she can have been oppressing we can have been oppressing you can have been oppressing they can have been oppressing
Negation
Simple form
I can't oppress you can't oppress she can't oppress we can't oppress you can't oppress they can't oppress
V-ing form
I can't be oppressing you can't be oppressing she can't be oppressing we can't be oppressing you can't be oppressing they can't be oppressing
Perfect
I can't have oppressed you can't have oppressed she can't have oppressed we can't have oppressed you can't have oppressed they can't have oppressed
V-ing perfect
I can't have been oppressing you can't have been oppressing she can't have been oppressing we can't have been oppressing you can't have been oppressing they can't have been oppressing
Interrogative form
Simple form
can I oppress? can you oppress? can she oppress? can we oppress? can you oppress? can they oppress?
V-ing form
can I be oppressing? can you be oppressing? can she be oppressing? can we be oppressing? can you be oppressing? can they be oppressing?
Perfect
can I have oppressed? can you have oppressed? can she have oppressed? can we have oppressed? can you have oppressed? can they have oppressed?
V-ing perfect
can I have been oppressing? can you have been oppressing? can she have been oppressing? can we have been oppressing? can you have been oppressing? can they have been oppressing?
Interro-negative form
Simple form
can't I oppress? can't you oppress? can't she oppress? can't we oppress? can't you oppress? can't they oppress?
V-ing form
can't I be oppressing? can't you be oppressing? can't she be oppressing? can't we be oppressing? can't you be oppressing? can't they be oppressing?
Perfect
can't I have oppressed? can't you have oppressed? can't she have oppressed? can't we have oppressed? can't you have oppressed? can't they have oppressed?
V-ing perfect
can't I have been oppressing? can't you have been oppressing? can't she have been oppressing? can't we have been oppressing? can't you have been oppressing? can't they have been oppressing?