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