English verb conjugation
OUGHT TO SAIL

Regular verb: sail - sailed - sailed

Affirmation

Simple form	V-ing form
I ought to sail you ought to sail he ought to sail we ought to sail you ought to sail they ought to sail	I ought to be sailing you ought to be sailing he ought to be sailing we ought to be sailing you ought to be sailing they ought to be sailing
Perfect	V-ing perfect
I ought to have sailed you ought to have sailed he ought to have sailed we ought to have sailed you ought to have sailed they ought to have sailed	I ought to have been sailing you ought to have been sailing he ought to have been sailing we ought to have been sailing you ought to have been sailing they ought to have been sailing

Negation

Simple form	V-ing form
I oughtn't to sail you oughtn't to sail he oughtn't to sail we oughtn't to sail you oughtn't to sail they oughtn't to sail	I oughtn't to be sailing you oughtn't to be sailing he oughtn't to be sailing we oughtn't to be sailing you oughtn't to be sailing they oughtn't to be sailing
Perfect	V-ing perfect
I oughtn't to have sailed you oughtn't to have sailed he oughtn't to have sailed we oughtn't to have sailed you oughtn't to have sailed they oughtn't to have sailed	I oughtn't to have been sailing you oughtn't to have been sailing he oughtn't to have been sailing we oughtn't to have been sailing you oughtn't to have been sailing they oughtn't to have been sailing

Interrogative form

Simple form	V-ing form
ought to I sail? ought to you sail? ought to he sail? ought to we sail? ought to you sail? ought to they sail?	ought to I be sailing? ought to you be sailing? ought to he be sailing? ought to we be sailing? ought to you be sailing? ought to they be sailing?
Perfect	V-ing perfect
ought to I have sailed? ought to you have sailed? ought to he have sailed? ought to we have sailed? ought to you have sailed? ought to they have sailed?	ought to I have been sailing? ought to you have been sailing? ought to he have been sailing? ought to we have been sailing? ought to you have been sailing? ought to they have been sailing?

Interro-negative form

Simple form	V-ing form
oughtn't I to sail? oughtn't you to sail? oughtn't he to sail? oughtn't we to sail? oughtn't you to sail? oughtn't they to sail?	oughtn't I to be sailing? oughtn't you to be sailing? oughtn't he to be sailing? oughtn't we to be sailing? oughtn't you to be sailing? oughtn't they to be sailing?
Perfect	V-ing perfect
oughtn't I to have sailed? oughtn't you to have sailed? oughtn't he to have sailed? oughtn't we to have sailed? oughtn't you to have sailed? oughtn't they to have sailed?	oughtn't I to have been sailing? oughtn't you to have been sailing? oughtn't he to have been sailing? oughtn't we to have been sailing? oughtn't you to have been sailing? oughtn't they to have been sailing?