I should aid you should aid she should aid we should aid you should aid they should aid
V-ing form
I should be aiding you should be aiding she should be aiding we should be aiding you should be aiding they should be aiding
Perfect
I should have aided you should have aided she should have aided we should have aided you should have aided they should have aided
V-ing perfect
I should have been aiding you should have been aiding she should have been aiding we should have been aiding you should have been aiding they should have been aiding
Negation
Simple form
I should not aid you should not aid she should not aid we should not aid you should not aid they should not aid
V-ing form
I should not be aiding you should not be aiding she should not be aiding we should not be aiding you should not be aiding they should not be aiding
Perfect
I should not have aided you should not have aided she should not have aided we should not have aided you should not have aided they should not have aided
V-ing perfect
I should not have been aiding you should not have been aiding she should not have been aiding we should not have been aiding you should not have been aiding they should not have been aiding
Interrogative form
Simple form
should I aid? should you aid? should she aid? should we aid? should you aid? should they aid?
V-ing form
should I be aiding? should you be aiding? should she be aiding? should we be aiding? should you be aiding? should they be aiding?
Perfect
should I have aided? should you have aided? should she have aided? should we have aided? should you have aided? should they have aided?
V-ing perfect
should I have been aiding? should you have been aiding? should she have been aiding? should we have been aiding? should you have been aiding? should they have been aiding?
Interro-negative form
Simple form
should I not aid? should you not aid? should she not aid? should we not aid? should you not aid? should they not aid?
V-ing form
should I not be aiding? should you not be aiding? should she not be aiding? should we not be aiding? should you not be aiding? should they not be aiding?
Perfect
should I not have aided? should you not have aided? should she not have aided? should we not have aided? should you not have aided? should they not have aided?
V-ing perfect
should I not have been aiding? should you not have been aiding? should she not have been aiding? should we not have been aiding? should you not have been aiding? should they not have been aiding?