I should watch you should watch he should watch we should watch you should watch they should watch
V-ing form
I should be watching you should be watching he should be watching we should be watching you should be watching they should be watching
Perfect
I should have watched you should have watched he should have watched we should have watched you should have watched they should have watched
V-ing perfect
I should have been watching you should have been watching he should have been watching we should have been watching you should have been watching they should have been watching
Negation
Simple form
I should not watch you should not watch he should not watch we should not watch you should not watch they should not watch
V-ing form
I should not be watching you should not be watching he should not be watching we should not be watching you should not be watching they should not be watching
Perfect
I should not have watched you should not have watched he should not have watched we should not have watched you should not have watched they should not have watched
V-ing perfect
I should not have been watching you should not have been watching he should not have been watching we should not have been watching you should not have been watching they should not have been watching
Interrogative form
Simple form
should I watch? should you watch? should he watch? should we watch? should you watch? should they watch?
V-ing form
should I be watching? should you be watching? should he be watching? should we be watching? should you be watching? should they be watching?
Perfect
should I have watched? should you have watched? should he have watched? should we have watched? should you have watched? should they have watched?
V-ing perfect
should I have been watching? should you have been watching? should he have been watching? should we have been watching? should you have been watching? should they have been watching?
Interro-negative form
Simple form
should I not watch? should you not watch? should he not watch? should we not watch? should you not watch? should they not watch?
V-ing form
should I not be watching? should you not be watching? should he not be watching? should we not be watching? should you not be watching? should they not be watching?
Perfect
should I not have watched? should you not have watched? should he not have watched? should we not have watched? should you not have watched? should they not have watched?
V-ing perfect
should I not have been watching? should you not have been watching? should he not have been watching? should we not have been watching? should you not have been watching? should they not have been watching?