I should pick you should pick she should pick we should pick you should pick they should pick
V-ing form
I should be picking you should be picking she should be picking we should be picking you should be picking they should be picking
Perfect
I should have picked you should have picked she should have picked we should have picked you should have picked they should have picked
V-ing perfect
I should have been picking you should have been picking she should have been picking we should have been picking you should have been picking they should have been picking
Negation
Simple form
I should not pick you should not pick she should not pick we should not pick you should not pick they should not pick
V-ing form
I should not be picking you should not be picking she should not be picking we should not be picking you should not be picking they should not be picking
Perfect
I should not have picked you should not have picked she should not have picked we should not have picked you should not have picked they should not have picked
V-ing perfect
I should not have been picking you should not have been picking she should not have been picking we should not have been picking you should not have been picking they should not have been picking
Interrogative form
Simple form
should I pick? should you pick? should she pick? should we pick? should you pick? should they pick?
V-ing form
should I be picking? should you be picking? should she be picking? should we be picking? should you be picking? should they be picking?
Perfect
should I have picked? should you have picked? should she have picked? should we have picked? should you have picked? should they have picked?
V-ing perfect
should I have been picking? should you have been picking? should she have been picking? should we have been picking? should you have been picking? should they have been picking?
Interro-negative form
Simple form
should I not pick? should you not pick? should she not pick? should we not pick? should you not pick? should they not pick?
V-ing form
should I not be picking? should you not be picking? should she not be picking? should we not be picking? should you not be picking? should they not be picking?
Perfect
should I not have picked? should you not have picked? should she not have picked? should we not have picked? should you not have picked? should they not have picked?
V-ing perfect
should I not have been picking? should you not have been picking? should she not have been picking? should we not have been picking? should you not have been picking? should they not have been picking?