I'd be underexercising you'd be underexercising she'd be underexercising we'd be underexercising you'd be underexercising they'd be underexercising
Perfect
I should've underexercised you should've underexercised she should've underexercised we should've underexercised you should've underexercised they should've underexercised
V-ing perfect
I should've been underexercising you should've been underexercising she should've been underexercising we should've been underexercising you should've been underexercising they should've been underexercising
Negation
Simple form
I shouldn't underexercise you shouldn't underexercise she shouldn't underexercise we shouldn't underexercise you shouldn't underexercise they shouldn't underexercise
V-ing form
I shouldn't be underexercising you shouldn't be underexercising she shouldn't be underexercising we shouldn't be underexercising you shouldn't be underexercising they shouldn't be underexercising
Perfect
I shouldn't have underexercised you shouldn't have underexercised she shouldn't have underexercised we shouldn't have underexercised you shouldn't have underexercised they shouldn't have underexercised
V-ing perfect
I shouldn't have been underexercising you shouldn't have been underexercising she shouldn't have been underexercising we shouldn't have been underexercising you shouldn't have been underexercising they shouldn't have been underexercising
Interrogative form
Simple form
should I underexercise? should you underexercise? should she underexercise? should we underexercise? should you underexercise? should they underexercise?
V-ing form
should I be underexercising? should you be underexercising? should she be underexercising? should we be underexercising? should you be underexercising? should they be underexercising?
Perfect
should I have underexercised? should you have underexercised? should she have underexercised? should we have underexercised? should you have underexercised? should they have underexercised?
V-ing perfect
should I have been underexercising? should you have been underexercising? should she have been underexercising? should we have been underexercising? should you have been underexercising? should they have been underexercising?
Interro-negative form
Simple form
shouldn't I underexercise? shouldn't you underexercise? shouldn't she underexercise? shouldn't we underexercise? shouldn't you underexercise? shouldn't they underexercise?
V-ing form
shouldn't I be underexercising? shouldn't you be underexercising? shouldn't she be underexercising? shouldn't we be underexercising? shouldn't you be underexercising? shouldn't they be underexercising?
Perfect
shouldn't I have underexercised? shouldn't you have underexercised? shouldn't she have underexercised? shouldn't we have underexercised? shouldn't you have underexercised? shouldn't they have underexercised?
V-ing perfect
shouldn't I have been underexercising? shouldn't you have been underexercising? shouldn't she have been underexercising? shouldn't we have been underexercising? shouldn't you have been underexercising? shouldn't they have been underexercising?