English verb conjugation
OUGHT TO ENTERTAIN

Regular verb: entertain - entertained - entertained

Affirmation

Simple form	V-ing form
I ought to entertain you ought to entertain she ought to entertain we ought to entertain you ought to entertain they ought to entertain	I ought to be entertaining you ought to be entertaining she ought to be entertaining we ought to be entertaining you ought to be entertaining they ought to be entertaining
Perfect	V-ing perfect
I ought to have entertained you ought to have entertained she ought to have entertained we ought to have entertained you ought to have entertained they ought to have entertained	I ought to have been entertaining you ought to have been entertaining she ought to have been entertaining we ought to have been entertaining you ought to have been entertaining they ought to have been entertaining

Negation

Simple form	V-ing form
I ought not to entertain you ought not to entertain she ought not to entertain we ought not to entertain you ought not to entertain they ought not to entertain	I ought not to entertaining you ought not to entertaining she ought not to entertaining we ought not to entertaining you ought not to entertaining they ought not to entertaining
Perfect	V-ing perfect
I ought not to have entertained you ought not to have entertained she ought not to have entertained we ought not to have entertained you ought not to have entertained they ought not to have entertained	I ought not to have been entertaining you ought not to have been entertaining she ought not to have been entertaining we ought not to have been entertaining you ought not to have been entertaining they ought not to have been entertaining

Interrogative form

Simple form	V-ing form
ought to I entertain? ought to you entertain? ought to she entertain? ought to we entertain? ought to you entertain? ought to they entertain?	ought to I be entertaining? ought to you be entertaining? ought to she be entertaining? ought to we be entertaining? ought to you be entertaining? ought to they be entertaining?
Perfect	V-ing perfect
ought to I have entertained? ought to you have entertained? ought to she have entertained? ought to we have entertained? ought to you have entertained? ought to they have entertained?	ought to I have been entertaining? ought to you have been entertaining? ought to she have been entertaining? ought to we have been entertaining? ought to you have been entertaining? ought to they have been entertaining?

Interro-negative form

Simple form	V-ing form
ought I not to entertain? ought you not to entertain? ought she not to entertain? ought we not to entertain? ought you not to entertain? ought they not to entertain?	ought I not to be entertaining? ought you not to be entertaining? ought she not to be entertaining? ought we not to be entertaining? ought you not to be entertaining? ought they not to be entertaining?
Perfect	V-ing perfect
ought I not to have entertained? ought you not to have entertained? ought she not to have entertained? ought we not to have entertained? ought you not to have entertained? ought they not to have entertained?	ought I not to have been entertaining? ought you not to have been entertaining? ought she not to have been entertaining? ought we not to have been entertaining? ought you not to have been entertaining? ought they not to have been entertaining?