English verb conjugation
OUGHT TO TWIN

Regular verb: twin - twinned - twinned

Affirmation

Simple form	V-ing form
I ought to twin you ought to twin she ought to twin we ought to twin you ought to twin they ought to twin	I ought to be twinning you ought to be twinning she ought to be twinning we ought to be twinning you ought to be twinning they ought to be twinning
Perfect	V-ing perfect
I ought to have twinned you ought to have twinned she ought to have twinned we ought to have twinned you ought to have twinned they ought to have twinned	I ought to have been twinning you ought to have been twinning she ought to have been twinning we ought to have been twinning you ought to have been twinning they ought to have been twinning

Negation

Simple form	V-ing form
I ought not to twin you ought not to twin she ought not to twin we ought not to twin you ought not to twin they ought not to twin	I ought not to twinning you ought not to twinning she ought not to twinning we ought not to twinning you ought not to twinning they ought not to twinning
Perfect	V-ing perfect
I ought not to have twinned you ought not to have twinned she ought not to have twinned we ought not to have twinned you ought not to have twinned they ought not to have twinned	I ought not to have been twinning you ought not to have been twinning she ought not to have been twinning we ought not to have been twinning you ought not to have been twinning they ought not to have been twinning

Interrogative form

Simple form	V-ing form
ought to I twin? ought to you twin? ought to she twin? ought to we twin? ought to you twin? ought to they twin?	ought to I be twinning? ought to you be twinning? ought to she be twinning? ought to we be twinning? ought to you be twinning? ought to they be twinning?
Perfect	V-ing perfect
ought to I have twinned? ought to you have twinned? ought to she have twinned? ought to we have twinned? ought to you have twinned? ought to they have twinned?	ought to I have been twinning? ought to you have been twinning? ought to she have been twinning? ought to we have been twinning? ought to you have been twinning? ought to they have been twinning?

Interro-negative form

Simple form	V-ing form
ought I not to twin? ought you not to twin? ought she not to twin? ought we not to twin? ought you not to twin? ought they not to twin?	ought I not to be twinning? ought you not to be twinning? ought she not to be twinning? ought we not to be twinning? ought you not to be twinning? ought they not to be twinning?
Perfect	V-ing perfect
ought I not to have twinned? ought you not to have twinned? ought she not to have twinned? ought we not to have twinned? ought you not to have twinned? ought they not to have twinned?	ought I not to have been twinning? ought you not to have been twinning? ought she not to have been twinning? ought we not to have been twinning? ought you not to have been twinning? ought they not to have been twinning?