English verb conjugation
OUGHT TO RETREAT

Regular verb: retreat - retreated - retreated

Affirmation

Simple form	V-ing form
I ought to retreat you ought to retreat he ought to retreat we ought to retreat you ought to retreat they ought to retreat	I ought to be retreating you ought to be retreating he ought to be retreating we ought to be retreating you ought to be retreating they ought to be retreating
Perfect	V-ing perfect
I ought to have retreated you ought to have retreated he ought to have retreated we ought to have retreated you ought to have retreated they ought to have retreated	I ought to have been retreating you ought to have been retreating he ought to have been retreating we ought to have been retreating you ought to have been retreating they ought to have been retreating

Negation

Simple form	V-ing form
I oughtn't to retreat you oughtn't to retreat he oughtn't to retreat we oughtn't to retreat you oughtn't to retreat they oughtn't to retreat	I oughtn't to be retreating you oughtn't to be retreating he oughtn't to be retreating we oughtn't to be retreating you oughtn't to be retreating they oughtn't to be retreating
Perfect	V-ing perfect
I oughtn't to have retreated you oughtn't to have retreated he oughtn't to have retreated we oughtn't to have retreated you oughtn't to have retreated they oughtn't to have retreated	I oughtn't to have been retreating you oughtn't to have been retreating he oughtn't to have been retreating we oughtn't to have been retreating you oughtn't to have been retreating they oughtn't to have been retreating

Interrogative form

Simple form	V-ing form
ought to I retreat? ought to you retreat? ought to he retreat? ought to we retreat? ought to you retreat? ought to they retreat?	ought to I be retreating? ought to you be retreating? ought to he be retreating? ought to we be retreating? ought to you be retreating? ought to they be retreating?
Perfect	V-ing perfect
ought to I have retreated? ought to you have retreated? ought to he have retreated? ought to we have retreated? ought to you have retreated? ought to they have retreated?	ought to I have been retreating? ought to you have been retreating? ought to he have been retreating? ought to we have been retreating? ought to you have been retreating? ought to they have been retreating?

Interro-negative form

Simple form	V-ing form
oughtn't I to retreat? oughtn't you to retreat? oughtn't he to retreat? oughtn't we to retreat? oughtn't you to retreat? oughtn't they to retreat?	oughtn't I to be retreating? oughtn't you to be retreating? oughtn't he to be retreating? oughtn't we to be retreating? oughtn't you to be retreating? oughtn't they to be retreating?
Perfect	V-ing perfect
oughtn't I to have retreated? oughtn't you to have retreated? oughtn't he to have retreated? oughtn't we to have retreated? oughtn't you to have retreated? oughtn't they to have retreated?	oughtn't I to have been retreating? oughtn't you to have been retreating? oughtn't he to have been retreating? oughtn't we to have been retreating? oughtn't you to have been retreating? oughtn't they to have been retreating?