I ought to decontaminate you ought to decontaminate he ought to decontaminate we ought to decontaminate you ought to decontaminate they ought to decontaminate
V-ing form
I ought to be decontaminating you ought to be decontaminating he ought to be decontaminating we ought to be decontaminating you ought to be decontaminating they ought to be decontaminating
Perfect
I ought to have decontaminated you ought to have decontaminated he ought to have decontaminated we ought to have decontaminated you ought to have decontaminated they ought to have decontaminated
V-ing perfect
I ought to have been decontaminating you ought to have been decontaminating he ought to have been decontaminating we ought to have been decontaminating you ought to have been decontaminating they ought to have been decontaminating
Negation
Simple form
I oughtn't to decontaminate you oughtn't to decontaminate he oughtn't to decontaminate we oughtn't to decontaminate you oughtn't to decontaminate they oughtn't to decontaminate
V-ing form
I oughtn't to be decontaminating you oughtn't to be decontaminating he oughtn't to be decontaminating we oughtn't to be decontaminating you oughtn't to be decontaminating they oughtn't to be decontaminating
Perfect
I oughtn't to have decontaminated you oughtn't to have decontaminated he oughtn't to have decontaminated we oughtn't to have decontaminated you oughtn't to have decontaminated they oughtn't to have decontaminated
V-ing perfect
I oughtn't to have been decontaminating you oughtn't to have been decontaminating he oughtn't to have been decontaminating we oughtn't to have been decontaminating you oughtn't to have been decontaminating they oughtn't to have been decontaminating
Interrogative form
Simple form
ought to I decontaminate? ought to you decontaminate? ought to he decontaminate? ought to we decontaminate? ought to you decontaminate? ought to they decontaminate?
V-ing form
ought to I be decontaminating? ought to you be decontaminating? ought to he be decontaminating? ought to we be decontaminating? ought to you be decontaminating? ought to they be decontaminating?
Perfect
ought to I have decontaminated? ought to you have decontaminated? ought to he have decontaminated? ought to we have decontaminated? ought to you have decontaminated? ought to they have decontaminated?
V-ing perfect
ought to I have been decontaminating? ought to you have been decontaminating? ought to he have been decontaminating? ought to we have been decontaminating? ought to you have been decontaminating? ought to they have been decontaminating?
Interro-negative form
Simple form
oughtn't I to decontaminate? oughtn't you to decontaminate? oughtn't he to decontaminate? oughtn't we to decontaminate? oughtn't you to decontaminate? oughtn't they to decontaminate?
V-ing form
oughtn't I to be decontaminating? oughtn't you to be decontaminating? oughtn't he to be decontaminating? oughtn't we to be decontaminating? oughtn't you to be decontaminating? oughtn't they to be decontaminating?
Perfect
oughtn't I to have decontaminated? oughtn't you to have decontaminated? oughtn't he to have decontaminated? oughtn't we to have decontaminated? oughtn't you to have decontaminated? oughtn't they to have decontaminated?
V-ing perfect
oughtn't I to have been decontaminating? oughtn't you to have been decontaminating? oughtn't he to have been decontaminating? oughtn't we to have been decontaminating? oughtn't you to have been decontaminating? oughtn't they to have been decontaminating?