I can progress you can progress he can progress we can progress you can progress they can progress
V-ing form
I can be progressing you can be progressing he can be progressing we can be progressing you can be progressing they can be progressing
Perfect
I can have progressed you can have progressed he can have progressed we can have progressed you can have progressed they can have progressed
V-ing perfect
I can have been progressing you can have been progressing he can have been progressing we can have been progressing you can have been progressing they can have been progressing
Negation
Simple form
I cannot progress you cannot progress he cannot progress we cannot progress you cannot progress they cannot progress
V-ing form
I cannot be progressing you cannot be progressing he cannot be progressing we cannot be progressing you cannot be progressing they cannot be progressing
Perfect
I cannot have progressed you cannot have progressed he cannot have progressed we cannot have progressed you cannot have progressed they cannot have progressed
V-ing perfect
I cannot have been progressing you cannot have been progressing he cannot have been progressing we cannot have been progressing you cannot have been progressing they cannot have been progressing
Interrogative form
Simple form
can I progress? can you progress? can he progress? can we progress? can you progress? can they progress?
V-ing form
can I be progressing? can you be progressing? can he be progressing? can we be progressing? can you be progressing? can they be progressing?
Perfect
can I have progressed? can you have progressed? can he have progressed? can we have progressed? can you have progressed? can they have progressed?
V-ing perfect
can I have been progressing? can you have been progressing? can he have been progressing? can we have been progressing? can you have been progressing? can they have been progressing?
Interro-negative form
Simple form
can I not progress? can you not progress? can he not progress? can we not progress? can you not progress? can they not progress?
V-ing form
can I not be progressing? can you not be progressing? can he not be progressing? can we not be progressing? can you not be progressing? can they not be progressing?
Perfect
can I not have progressed? can you not have progressed? can he not have progressed? can we not have progressed? can you not have progressed? can they not have progressed?
V-ing perfect
can I not have been progressing? can you not have been progressing? can he not have been progressing? can we not have been progressing? can you not have been progressing? can they not have been progressing?