English verb conjugation
OUGHT TO MARBLE

Regular verb: marble - marbled - marbled

Affirmation

Simple form	V-ing form
I ought to marble you ought to marble she ought to marble we ought to marble you ought to marble they ought to marble	I ought to be marbling you ought to be marbling she ought to be marbling we ought to be marbling you ought to be marbling they ought to be marbling
Perfect	V-ing perfect
I ought to have marbled you ought to have marbled she ought to have marbled we ought to have marbled you ought to have marbled they ought to have marbled	I ought to have been marbling you ought to have been marbling she ought to have been marbling we ought to have been marbling you ought to have been marbling they ought to have been marbling

Negation

Simple form	V-ing form
I oughtn't to marble you oughtn't to marble she oughtn't to marble we oughtn't to marble you oughtn't to marble they oughtn't to marble	I oughtn't to be marbling you oughtn't to be marbling she oughtn't to be marbling we oughtn't to be marbling you oughtn't to be marbling they oughtn't to be marbling
Perfect	V-ing perfect
I oughtn't to have marbled you oughtn't to have marbled she oughtn't to have marbled we oughtn't to have marbled you oughtn't to have marbled they oughtn't to have marbled	I oughtn't to have been marbling you oughtn't to have been marbling she oughtn't to have been marbling we oughtn't to have been marbling you oughtn't to have been marbling they oughtn't to have been marbling

Interrogative form

Simple form	V-ing form
ought to I marble? ought to you marble? ought to she marble? ought to we marble? ought to you marble? ought to they marble?	ought to I be marbling? ought to you be marbling? ought to she be marbling? ought to we be marbling? ought to you be marbling? ought to they be marbling?
Perfect	V-ing perfect
ought to I have marbled? ought to you have marbled? ought to she have marbled? ought to we have marbled? ought to you have marbled? ought to they have marbled?	ought to I have been marbling? ought to you have been marbling? ought to she have been marbling? ought to we have been marbling? ought to you have been marbling? ought to they have been marbling?

Interro-negative form

Simple form	V-ing form
oughtn't I to marble? oughtn't you to marble? oughtn't she to marble? oughtn't we to marble? oughtn't you to marble? oughtn't they to marble?	oughtn't I to be marbling? oughtn't you to be marbling? oughtn't she to be marbling? oughtn't we to be marbling? oughtn't you to be marbling? oughtn't they to be marbling?
Perfect	V-ing perfect
oughtn't I to have marbled? oughtn't you to have marbled? oughtn't she to have marbled? oughtn't we to have marbled? oughtn't you to have marbled? oughtn't they to have marbled?	oughtn't I to have been marbling? oughtn't you to have been marbling? oughtn't she to have been marbling? oughtn't we to have been marbling? oughtn't you to have been marbling? oughtn't they to have been marbling?