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