English verb conjugation
SHOULD PLAN

Regular verb: plan - planned - planned

Affirmation

Simple form	V-ing form
I should plan you should plan he should plan we should plan you should plan they should plan	I should be planning you should be planning he should be planning we should be planning you should be planning they should be planning
Perfect	V-ing perfect
I should have planned you should have planned he should have planned we should have planned you should have planned they should have planned	I should have been planning you should have been planning he should have been planning we should have been planning you should have been planning they should have been planning

Negation

Simple form	V-ing form
I should not plan you should not plan he should not plan we should not plan you should not plan they should not plan	I should not be planning you should not be planning he should not be planning we should not be planning you should not be planning they should not be planning
Perfect	V-ing perfect
I should not have planned you should not have planned he should not have planned we should not have planned you should not have planned they should not have planned	I should not have been planning you should not have been planning he 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	V-ing form
should I plan? should you plan? should he plan? should we plan? should you plan? should they plan?	should I be planning? should you be planning? should he be planning? should we be planning? should you be planning? should they be planning?
Perfect	V-ing perfect
should I have planned? should you have planned? should he have planned? should we have planned? should you have planned? should they have planned?	should I have been planning? should you have been planning? should he have been planning? should we have been planning? should you have been planning? should they have been planning?

Interro-negative form

Simple form	V-ing form
should I not plan? should you not plan? should he not plan? should we not plan? should you not plan? should they not plan?	should I not be planning? should you not be planning? should he not be planning? should we not be planning? should you not be planning? should they not be planning?
Perfect	V-ing perfect
should I not have planned? should you not have planned? should he not have planned? should we not have planned? should you not have planned? should they not have planned?	should I not have been planning? should you not have been planning? should he not have been planning? should we not have been planning? should you not have been planning? should they not have been planning?