I should plan you should plan she should plan we should plan you should plan they should plan
V-ing form
I should be planning you should be planning she should be planning we should be planning you should be planning they should be planning
Perfect
I should have planned you should have planned she should have planned we should have planned you should have planned they should have planned
V-ing perfect
I should have been planning you should have been planning she should have been planning we should have been planning you should have been planning they should have been planning
Negation
Simple form
I should not plan you should not plan she should not plan we should not plan you should not plan they should not plan
V-ing form
I should not be planning you should not be planning she should not be planning we should not be planning you should not be planning they should not be planning
Perfect
I should not have planned you should not have planned she should not have planned we should not have planned you should not have planned they should not have planned
V-ing perfect
I should not have been planning you should not have been planning she should not have been planning we should not have been planning you should not have been planning they should not have been planning
Interrogative form
Simple form
should I plan? should you plan? should she plan? should we plan? should you plan? should they plan?
V-ing form
should I be planning? should you be planning? should she be planning? should we be planning? should you be planning? should they be planning?
Perfect
should I have planned? should you have planned? should she have planned? should we have planned? should you have planned? should they have planned?
V-ing perfect
should I have been planning? should you have been planning? should she have been planning? should we have been planning? should you have been planning? should they have been planning?
Interro-negative form
Simple form
should I not plan? should you not plan? should she not plan? should we not plan? should you not plan? should they not plan?
V-ing form
should I not be planning? should you not be planning? should she not be planning? should we not be planning? should you not be planning? should they not be planning?
Perfect
should I not have planned? should you not have planned? should she not have planned? should we not have planned? should you not have planned? should they not have planned?
V-ing perfect
should I not have been planning? should you not have been planning? should she not have been planning? should we not have been planning? should you not have been planning? should they not have been planning?