English verb conjugation
SHOULD PETITION

Regular verb: petition - petitioned - petitioned

Affirmation

Simple form	V-ing form
I'd petition you'd petition he'd petition we'd petition you'd petition they'd petition	I'd be petitioning you'd be petitioning he'd be petitioning we'd be petitioning you'd be petitioning they'd be petitioning
Perfect	V-ing perfect
I should've petitioned you should've petitioned he should've petitioned we should've petitioned you should've petitioned they should've petitioned	I should've been petitioning you should've been petitioning he should've been petitioning we should've been petitioning you should've been petitioning they should've been petitioning

Negation

Simple form	V-ing form
I shouldn't petition you shouldn't petition he shouldn't petition we shouldn't petition you shouldn't petition they shouldn't petition	I shouldn't be petitioning you shouldn't be petitioning he shouldn't be petitioning we shouldn't be petitioning you shouldn't be petitioning they shouldn't be petitioning
Perfect	V-ing perfect
I shouldn't have petitioned you shouldn't have petitioned he shouldn't have petitioned we shouldn't have petitioned you shouldn't have petitioned they shouldn't have petitioned	I shouldn't have been petitioning you shouldn't have been petitioning he shouldn't have been petitioning we shouldn't have been petitioning you shouldn't have been petitioning they shouldn't have been petitioning

Interrogative form

Simple form	V-ing form
should I petition? should you petition? should he petition? should we petition? should you petition? should they petition?	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	V-ing 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?	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	V-ing form
shouldn't I petition? shouldn't you petition? shouldn't he petition? shouldn't we petition? shouldn't you petition? shouldn't they petition?	shouldn't I be petitioning? shouldn't you be petitioning? shouldn't he be petitioning? shouldn't we be petitioning? shouldn't you be petitioning? shouldn't they be petitioning?
Perfect	V-ing perfect
shouldn't I have petitioned? shouldn't you have petitioned? shouldn't he have petitioned? shouldn't we have petitioned? shouldn't you have petitioned? shouldn't they have petitioned?	shouldn't I have been petitioning? shouldn't you have been petitioning? shouldn't he have been petitioning? shouldn't we have been petitioning? shouldn't you have been petitioning? shouldn't they have been petitioning?