I'd be prevaluing you'd be prevaluing he'd be prevaluing we'd be prevaluing you'd be prevaluing they'd be prevaluing
Perfect
I should've prevalued you should've prevalued he should've prevalued we should've prevalued you should've prevalued they should've prevalued
V-ing perfect
I should've been prevaluing you should've been prevaluing he should've been prevaluing we should've been prevaluing you should've been prevaluing they should've been prevaluing
Negation
Simple form
I shouldn't prevalue you shouldn't prevalue he shouldn't prevalue we shouldn't prevalue you shouldn't prevalue they shouldn't prevalue
V-ing form
I shouldn't be prevaluing you shouldn't be prevaluing he shouldn't be prevaluing we shouldn't be prevaluing you shouldn't be prevaluing they shouldn't be prevaluing
Perfect
I shouldn't have prevalued you shouldn't have prevalued he shouldn't have prevalued we shouldn't have prevalued you shouldn't have prevalued they shouldn't have prevalued
V-ing perfect
I shouldn't have been prevaluing you shouldn't have been prevaluing he shouldn't have been prevaluing we shouldn't have been prevaluing you shouldn't have been prevaluing they shouldn't have been prevaluing
Interrogative form
Simple form
should I prevalue? should you prevalue? should he prevalue? should we prevalue? should you prevalue? should they prevalue?
V-ing form
should I be prevaluing? should you be prevaluing? should he be prevaluing? should we be prevaluing? should you be prevaluing? should they be prevaluing?
Perfect
should I have prevalued? should you have prevalued? should he have prevalued? should we have prevalued? should you have prevalued? should they have prevalued?
V-ing perfect
should I have been prevaluing? should you have been prevaluing? should he have been prevaluing? should we have been prevaluing? should you have been prevaluing? should they have been prevaluing?
Interro-negative form
Simple form
shouldn't I prevalue? shouldn't you prevalue? shouldn't he prevalue? shouldn't we prevalue? shouldn't you prevalue? shouldn't they prevalue?
V-ing form
shouldn't I be prevaluing? shouldn't you be prevaluing? shouldn't he be prevaluing? shouldn't we be prevaluing? shouldn't you be prevaluing? shouldn't they be prevaluing?
Perfect
shouldn't I have prevalued? shouldn't you have prevalued? shouldn't he have prevalued? shouldn't we have prevalued? shouldn't you have prevalued? shouldn't they have prevalued?
V-ing perfect
shouldn't I have been prevaluing? shouldn't you have been prevaluing? shouldn't he have been prevaluing? shouldn't we have been prevaluing? shouldn't you have been prevaluing? shouldn't they have been prevaluing?