English verb conjugation
OUGHT TO LEISTER

Regular verb: leister - leistered - leistered

Affirmation

Simple form	V-ing form
I ought to leister you ought to leister she ought to leister we ought to leister you ought to leister they ought to leister	I ought to be leistering you ought to be leistering she ought to be leistering we ought to be leistering you ought to be leistering they ought to be leistering
Perfect	V-ing perfect
I ought to have leistered you ought to have leistered she ought to have leistered we ought to have leistered you ought to have leistered they ought to have leistered	I ought to have been leistering you ought to have been leistering she ought to have been leistering we ought to have been leistering you ought to have been leistering they ought to have been leistering

Negation

Simple form	V-ing form
I oughtn't to leister you oughtn't to leister she oughtn't to leister we oughtn't to leister you oughtn't to leister they oughtn't to leister	I oughtn't to be leistering you oughtn't to be leistering she oughtn't to be leistering we oughtn't to be leistering you oughtn't to be leistering they oughtn't to be leistering
Perfect	V-ing perfect
I oughtn't to have leistered you oughtn't to have leistered she oughtn't to have leistered we oughtn't to have leistered you oughtn't to have leistered they oughtn't to have leistered	I oughtn't to have been leistering you oughtn't to have been leistering she oughtn't to have been leistering we oughtn't to have been leistering you oughtn't to have been leistering they oughtn't to have been leistering

Interrogative form

Simple form	V-ing form
ought to I leister? ought to you leister? ought to she leister? ought to we leister? ought to you leister? ought to they leister?	ought to I be leistering? ought to you be leistering? ought to she be leistering? ought to we be leistering? ought to you be leistering? ought to they be leistering?
Perfect	V-ing perfect
ought to I have leistered? ought to you have leistered? ought to she have leistered? ought to we have leistered? ought to you have leistered? ought to they have leistered?	ought to I have been leistering? ought to you have been leistering? ought to she have been leistering? ought to we have been leistering? ought to you have been leistering? ought to they have been leistering?

Interro-negative form

Simple form	V-ing form
oughtn't I to leister? oughtn't you to leister? oughtn't she to leister? oughtn't we to leister? oughtn't you to leister? oughtn't they to leister?	oughtn't I to be leistering? oughtn't you to be leistering? oughtn't she to be leistering? oughtn't we to be leistering? oughtn't you to be leistering? oughtn't they to be leistering?
Perfect	V-ing perfect
oughtn't I to have leistered? oughtn't you to have leistered? oughtn't she to have leistered? oughtn't we to have leistered? oughtn't you to have leistered? oughtn't they to have leistered?	oughtn't I to have been leistering? oughtn't you to have been leistering? oughtn't she to have been leistering? oughtn't we to have been leistering? oughtn't you to have been leistering? oughtn't they to have been leistering?