I'd place you'd place she'd place we'd place you'd place they'd place
V-ing form
I'd be placing you'd be placing she'd be placing we'd be placing you'd be placing they'd be placing
Perfect
I should've placed you should've placed she 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 she 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 she 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 she 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 she 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 she 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 she place? should we place? should you place? should they place?
V-ing form
should I be placing? should you be placing? should she be placing? should we be placing? should you be placing? should they be placing?
Perfect
should I have placed? should you have placed? should she 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 she 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 she 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 she 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 she 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 she have been placing? shouldn't we have been placing? shouldn't you have been placing? shouldn't they have been placing?