English verb conjugation
SHOULD QUAD

Regular verb: quad - quaded - quaded

Affirmation

Simple form	V-ing form
I'd quad you'd quad he'd quad we'd quad you'd quad they'd quad	I'd be quading you'd be quading he'd be quading we'd be quading you'd be quading they'd be quading
Perfect	V-ing perfect
I should've quaded you should've quaded he should've quaded we should've quaded you should've quaded they should've quaded	I should've been quading you should've been quading he should've been quading we should've been quading you should've been quading they should've been quading

Negation

Simple form	V-ing form
I shouldn't quad you shouldn't quad he shouldn't quad we shouldn't quad you shouldn't quad they shouldn't quad	I shouldn't be quading you shouldn't be quading he shouldn't be quading we shouldn't be quading you shouldn't be quading they shouldn't be quading
Perfect	V-ing perfect
I shouldn't have quaded you shouldn't have quaded he shouldn't have quaded we shouldn't have quaded you shouldn't have quaded they shouldn't have quaded	I shouldn't have been quading you shouldn't have been quading he shouldn't have been quading we shouldn't have been quading you shouldn't have been quading they shouldn't have been quading

Interrogative form

Simple form	V-ing form
should I quad? should you quad? should he quad? should we quad? should you quad? should they quad?	should I be quading? should you be quading? should he be quading? should we be quading? should you be quading? should they be quading?
Perfect	V-ing perfect
should I have quaded? should you have quaded? should he have quaded? should we have quaded? should you have quaded? should they have quaded?	should I have been quading? should you have been quading? should he have been quading? should we have been quading? should you have been quading? should they have been quading?

Interro-negative form

Simple form	V-ing form
shouldn't I quad? shouldn't you quad? shouldn't he quad? shouldn't we quad? shouldn't you quad? shouldn't they quad?	shouldn't I be quading? shouldn't you be quading? shouldn't he be quading? shouldn't we be quading? shouldn't you be quading? shouldn't they be quading?
Perfect	V-ing perfect
shouldn't I have quaded? shouldn't you have quaded? shouldn't he have quaded? shouldn't we have quaded? shouldn't you have quaded? shouldn't they have quaded?	shouldn't I have been quading? shouldn't you have been quading? shouldn't he have been quading? shouldn't we have been quading? shouldn't you have been quading? shouldn't they have been quading?