English verb conjugation
SHOULD SQUARE

Regular verb: square - squared - squared

Affirmation

Simple form	V-ing form
I'd square you'd square she'd square we'd square you'd square they'd square	I'd be squaring you'd be squaring she'd be squaring we'd be squaring you'd be squaring they'd be squaring
Perfect	V-ing perfect
I should've squared you should've squared she should've squared we should've squared you should've squared they should've squared	I should've been squaring you should've been squaring she should've been squaring we should've been squaring you should've been squaring they should've been squaring

Negation

Simple form	V-ing form
I shouldn't square you shouldn't square she shouldn't square we shouldn't square you shouldn't square they shouldn't square	I shouldn't be squaring you shouldn't be squaring she shouldn't be squaring we shouldn't be squaring you shouldn't be squaring they shouldn't be squaring
Perfect	V-ing perfect
I shouldn't have squared you shouldn't have squared she shouldn't have squared we shouldn't have squared you shouldn't have squared they shouldn't have squared	I shouldn't have been squaring you shouldn't have been squaring she shouldn't have been squaring we shouldn't have been squaring you shouldn't have been squaring they shouldn't have been squaring

Interrogative form

Simple form	V-ing form
should I square? should you square? should she square? should we square? should you square? should they square?	should I be squaring? should you be squaring? should she be squaring? should we be squaring? should you be squaring? should they be squaring?
Perfect	V-ing perfect
should I have squared? should you have squared? should she have squared? should we have squared? should you have squared? should they have squared?	should I have been squaring? should you have been squaring? should she have been squaring? should we have been squaring? should you have been squaring? should they have been squaring?

Interro-negative form

Simple form	V-ing form
shouldn't I square? shouldn't you square? shouldn't she square? shouldn't we square? shouldn't you square? shouldn't they square?	shouldn't I be squaring? shouldn't you be squaring? shouldn't she be squaring? shouldn't we be squaring? shouldn't you be squaring? shouldn't they be squaring?
Perfect	V-ing perfect
shouldn't I have squared? shouldn't you have squared? shouldn't she have squared? shouldn't we have squared? shouldn't you have squared? shouldn't they have squared?	shouldn't I have been squaring? shouldn't you have been squaring? shouldn't she have been squaring? shouldn't we have been squaring? shouldn't you have been squaring? shouldn't they have been squaring?