English verb conjugation
OUGHT TO TOPPLE

Regular verb: topple - toppled - toppled

Affirmation

Simple form	V-ing form
I ought to topple you ought to topple he ought to topple we ought to topple you ought to topple they ought to topple	I ought to be toppling you ought to be toppling he ought to be toppling we ought to be toppling you ought to be toppling they ought to be toppling
Perfect	V-ing perfect
I ought to have toppled you ought to have toppled he ought to have toppled we ought to have toppled you ought to have toppled they ought to have toppled	I ought to have been toppling you ought to have been toppling he ought to have been toppling we ought to have been toppling you ought to have been toppling they ought to have been toppling

Negation

Simple form	V-ing form
I oughtn't to topple you oughtn't to topple he oughtn't to topple we oughtn't to topple you oughtn't to topple they oughtn't to topple	I oughtn't to be toppling you oughtn't to be toppling he oughtn't to be toppling we oughtn't to be toppling you oughtn't to be toppling they oughtn't to be toppling
Perfect	V-ing perfect
I oughtn't to have toppled you oughtn't to have toppled he oughtn't to have toppled we oughtn't to have toppled you oughtn't to have toppled they oughtn't to have toppled	I oughtn't to have been toppling you oughtn't to have been toppling he oughtn't to have been toppling we oughtn't to have been toppling you oughtn't to have been toppling they oughtn't to have been toppling

Interrogative form

Simple form	V-ing form
ought to I topple? ought to you topple? ought to he topple? ought to we topple? ought to you topple? ought to they topple?	ought to I be toppling? ought to you be toppling? ought to he be toppling? ought to we be toppling? ought to you be toppling? ought to they be toppling?
Perfect	V-ing perfect
ought to I have toppled? ought to you have toppled? ought to he have toppled? ought to we have toppled? ought to you have toppled? ought to they have toppled?	ought to I have been toppling? ought to you have been toppling? ought to he have been toppling? ought to we have been toppling? ought to you have been toppling? ought to they have been toppling?

Interro-negative form

Simple form	V-ing form
oughtn't I to topple? oughtn't you to topple? oughtn't he to topple? oughtn't we to topple? oughtn't you to topple? oughtn't they to topple?	oughtn't I to be toppling? oughtn't you to be toppling? oughtn't he to be toppling? oughtn't we to be toppling? oughtn't you to be toppling? oughtn't they to be toppling?
Perfect	V-ing perfect
oughtn't I to have toppled? oughtn't you to have toppled? oughtn't he to have toppled? oughtn't we to have toppled? oughtn't you to have toppled? oughtn't they to have toppled?	oughtn't I to have been toppling? oughtn't you to have been toppling? oughtn't he to have been toppling? oughtn't we to have been toppling? oughtn't you to have been toppling? oughtn't they to have been toppling?