English verb conjugation
OUGHT TO RESERVE

Regular verb: reserve - reserved - reserved

Affirmation

Simple form	V-ing form
I ought to reserve you ought to reserve she ought to reserve we ought to reserve you ought to reserve they ought to reserve	I ought to be reserving you ought to be reserving she ought to be reserving we ought to be reserving you ought to be reserving they ought to be reserving
Perfect	V-ing perfect
I ought to have reserved you ought to have reserved she ought to have reserved we ought to have reserved you ought to have reserved they ought to have reserved	I ought to have been reserving you ought to have been reserving she ought to have been reserving we ought to have been reserving you ought to have been reserving they ought to have been reserving

Negation

Simple form	V-ing form
I oughtn't to reserve you oughtn't to reserve she oughtn't to reserve we oughtn't to reserve you oughtn't to reserve they oughtn't to reserve	I oughtn't to be reserving you oughtn't to be reserving she oughtn't to be reserving we oughtn't to be reserving you oughtn't to be reserving they oughtn't to be reserving
Perfect	V-ing perfect
I oughtn't to have reserved you oughtn't to have reserved she oughtn't to have reserved we oughtn't to have reserved you oughtn't to have reserved they oughtn't to have reserved	I oughtn't to have been reserving you oughtn't to have been reserving she oughtn't to have been reserving we oughtn't to have been reserving you oughtn't to have been reserving they oughtn't to have been reserving

Interrogative form

Simple form	V-ing form
ought to I reserve? ought to you reserve? ought to she reserve? ought to we reserve? ought to you reserve? ought to they reserve?	ought to I be reserving? ought to you be reserving? ought to she be reserving? ought to we be reserving? ought to you be reserving? ought to they be reserving?
Perfect	V-ing perfect
ought to I have reserved? ought to you have reserved? ought to she have reserved? ought to we have reserved? ought to you have reserved? ought to they have reserved?	ought to I have been reserving? ought to you have been reserving? ought to she have been reserving? ought to we have been reserving? ought to you have been reserving? ought to they have been reserving?

Interro-negative form

Simple form	V-ing form
oughtn't I to reserve? oughtn't you to reserve? oughtn't she to reserve? oughtn't we to reserve? oughtn't you to reserve? oughtn't they to reserve?	oughtn't I to be reserving? oughtn't you to be reserving? oughtn't she to be reserving? oughtn't we to be reserving? oughtn't you to be reserving? oughtn't they to be reserving?
Perfect	V-ing perfect
oughtn't I to have reserved? oughtn't you to have reserved? oughtn't she to have reserved? oughtn't we to have reserved? oughtn't you to have reserved? oughtn't they to have reserved?	oughtn't I to have been reserving? oughtn't you to have been reserving? oughtn't she to have been reserving? oughtn't we to have been reserving? oughtn't you to have been reserving? oughtn't they to have been reserving?