English verb conjugation
OUGHT TO TOUGHEN

Regular verb: toughen - toughened - toughened

Affirmation

Simple form	V-ing form
I ought to toughen you ought to toughen he ought to toughen we ought to toughen you ought to toughen they ought to toughen	I ought to be toughening you ought to be toughening he ought to be toughening we ought to be toughening you ought to be toughening they ought to be toughening
Perfect	V-ing perfect
I ought to have toughened you ought to have toughened he ought to have toughened we ought to have toughened you ought to have toughened they ought to have toughened	I ought to have been toughening you ought to have been toughening he ought to have been toughening we ought to have been toughening you ought to have been toughening they ought to have been toughening

Negation

Simple form	V-ing form
I ought not to toughen you ought not to toughen he ought not to toughen we ought not to toughen you ought not to toughen they ought not to toughen	I ought not to toughening you ought not to toughening he ought not to toughening we ought not to toughening you ought not to toughening they ought not to toughening
Perfect	V-ing perfect
I ought not to have toughened you ought not to have toughened he ought not to have toughened we ought not to have toughened you ought not to have toughened they ought not to have toughened	I ought not to have been toughening you ought not to have been toughening he ought not to have been toughening we ought not to have been toughening you ought not to have been toughening they ought not to have been toughening

Interrogative form

Simple form	V-ing form
ought to I toughen? ought to you toughen? ought to he toughen? ought to we toughen? ought to you toughen? ought to they toughen?	ought to I be toughening? ought to you be toughening? ought to he be toughening? ought to we be toughening? ought to you be toughening? ought to they be toughening?
Perfect	V-ing perfect
ought to I have toughened? ought to you have toughened? ought to he have toughened? ought to we have toughened? ought to you have toughened? ought to they have toughened?	ought to I have been toughening? ought to you have been toughening? ought to he have been toughening? ought to we have been toughening? ought to you have been toughening? ought to they have been toughening?

Interro-negative form

Simple form	V-ing form
ought I not to toughen? ought you not to toughen? ought he not to toughen? ought we not to toughen? ought you not to toughen? ought they not to toughen?	ought I not to be toughening? ought you not to be toughening? ought he not to be toughening? ought we not to be toughening? ought you not to be toughening? ought they not to be toughening?
Perfect	V-ing perfect
ought I not to have toughened? ought you not to have toughened? ought he not to have toughened? ought we not to have toughened? ought you not to have toughened? ought they not to have toughened?	ought I not to have been toughening? ought you not to have been toughening? ought he not to have been toughening? ought we not to have been toughening? ought you not to have been toughening? ought they not to have been toughening?