I should petition you should petition he should petition we should petition you should petition they should petition
V-ing form
I should be petitioning you should be petitioning he should be petitioning we should be petitioning you should be petitioning they should be petitioning
Perfect
I should have petitioned you should have petitioned he should have petitioned we should have petitioned you should have petitioned they should have petitioned
V-ing perfect
I should have been petitioning you should have been petitioning he should have been petitioning we should have been petitioning you should have been petitioning they should have been petitioning
Negation
Simple form
I should not petition you should not petition he should not petition we should not petition you should not petition they should not petition
V-ing form
I should not be petitioning you should not be petitioning he should not be petitioning we should not be petitioning you should not be petitioning they should not be petitioning
Perfect
I should not have petitioned you should not have petitioned he should not have petitioned we should not have petitioned you should not have petitioned they should not have petitioned
V-ing perfect
I should not have been petitioning you should not have been petitioning he should not have been petitioning we should not have been petitioning you should not have been petitioning they should not have been petitioning
Interrogative form
Simple form
should I petition? should you petition? should he petition? should we petition? should you petition? should they petition?
V-ing form
should I be petitioning? should you be petitioning? should he be petitioning? should we be petitioning? should you be petitioning? should they be petitioning?
Perfect
should I have petitioned? should you have petitioned? should he have petitioned? should we have petitioned? should you have petitioned? should they have petitioned?
V-ing perfect
should I have been petitioning? should you have been petitioning? should he have been petitioning? should we have been petitioning? should you have been petitioning? should they have been petitioning?
Interro-negative form
Simple form
should I not petition? should you not petition? should he not petition? should we not petition? should you not petition? should they not petition?
V-ing form
should I not be petitioning? should you not be petitioning? should he not be petitioning? should we not be petitioning? should you not be petitioning? should they not be petitioning?
Perfect
should I not have petitioned? should you not have petitioned? should he not have petitioned? should we not have petitioned? should you not have petitioned? should they not have petitioned?
V-ing perfect
should I not have been petitioning? should you not have been petitioning? should he not have been petitioning? should we not have been petitioning? should you not have been petitioning? should they not have been petitioning?