English verb conjugation
SHOULD BOARD

Regular verb: board - boarded - boarded

Affirmation

Simple form	V-ing form
I should board you should board he should board we should board you should board they should board	I should be boarding you should be boarding he should be boarding we should be boarding you should be boarding they should be boarding
Perfect	V-ing perfect
I should have boarded you should have boarded he should have boarded we should have boarded you should have boarded they should have boarded	I should have been boarding you should have been boarding he should have been boarding we should have been boarding you should have been boarding they should have been boarding

Negation

Simple form	V-ing form
I should not board you should not board he should not board we should not board you should not board they should not board	I should not be boarding you should not be boarding he should not be boarding we should not be boarding you should not be boarding they should not be boarding
Perfect	V-ing perfect
I should not have boarded you should not have boarded he should not have boarded we should not have boarded you should not have boarded they should not have boarded	I should not have been boarding you should not have been boarding he should not have been boarding we should not have been boarding you should not have been boarding they should not have been boarding

Interrogative form

Simple form	V-ing form
should I board? should you board? should he board? should we board? should you board? should they board?	should I be boarding? should you be boarding? should he be boarding? should we be boarding? should you be boarding? should they be boarding?
Perfect	V-ing perfect
should I have boarded? should you have boarded? should he have boarded? should we have boarded? should you have boarded? should they have boarded?	should I have been boarding? should you have been boarding? should he have been boarding? should we have been boarding? should you have been boarding? should they have been boarding?

Interro-negative form

Simple form	V-ing form
should I not board? should you not board? should he not board? should we not board? should you not board? should they not board?	should I not be boarding? should you not be boarding? should he not be boarding? should we not be boarding? should you not be boarding? should they not be boarding?
Perfect	V-ing perfect
should I not have boarded? should you not have boarded? should he not have boarded? should we not have boarded? should you not have boarded? should they not have boarded?	should I not have been boarding? should you not have been boarding? should he not have been boarding? should we not have been boarding? should you not have been boarding? should they not have been boarding?