English verb conjugation
SHOULD PET

Regular verb: pet - petted - petted

Affirmation

Simple form	V-ing form
I'd pet you'd pet he'd pet we'd pet you'd pet they'd pet	I'd be petting you'd be petting he'd be petting we'd be petting you'd be petting they'd be petting
Perfect	V-ing perfect
I should've petted you should've petted he should've petted we should've petted you should've petted they should've petted	I should've been petting you should've been petting he should've been petting we should've been petting you should've been petting they should've been petting

Negation

Simple form	V-ing form
I shouldn't pet you shouldn't pet he shouldn't pet we shouldn't pet you shouldn't pet they shouldn't pet	I shouldn't be petting you shouldn't be petting he shouldn't be petting we shouldn't be petting you shouldn't be petting they shouldn't be petting
Perfect	V-ing perfect
I shouldn't have petted you shouldn't have petted he shouldn't have petted we shouldn't have petted you shouldn't have petted they shouldn't have petted	I shouldn't have been petting you shouldn't have been petting he shouldn't have been petting we shouldn't have been petting you shouldn't have been petting they shouldn't have been petting

Interrogative form

Simple form	V-ing form
should I pet? should you pet? should he pet? should we pet? should you pet? should they pet?	should I be petting? should you be petting? should he be petting? should we be petting? should you be petting? should they be petting?
Perfect	V-ing perfect
should I have petted? should you have petted? should he have petted? should we have petted? should you have petted? should they have petted?	should I have been petting? should you have been petting? should he have been petting? should we have been petting? should you have been petting? should they have been petting?

Interro-negative form

Simple form	V-ing form
shouldn't I pet? shouldn't you pet? shouldn't he pet? shouldn't we pet? shouldn't you pet? shouldn't they pet?	shouldn't I be petting? shouldn't you be petting? shouldn't he be petting? shouldn't we be petting? shouldn't you be petting? shouldn't they be petting?
Perfect	V-ing perfect
shouldn't I have petted? shouldn't you have petted? shouldn't he have petted? shouldn't we have petted? shouldn't you have petted? shouldn't they have petted?	shouldn't I have been petting? shouldn't you have been petting? shouldn't he have been petting? shouldn't we have been petting? shouldn't you have been petting? shouldn't they have been petting?