English verb conjugation
OUGHT TO LAST

Regular verb: last - lasted - lasted

Affirmation

Simple form	V-ing form
I ought to last you ought to last she ought to last we ought to last you ought to last they ought to last	I ought to be lasting you ought to be lasting she ought to be lasting we ought to be lasting you ought to be lasting they ought to be lasting
Perfect	V-ing perfect
I ought to have lasted you ought to have lasted she ought to have lasted we ought to have lasted you ought to have lasted they ought to have lasted	I ought to have been lasting you ought to have been lasting she ought to have been lasting we ought to have been lasting you ought to have been lasting they ought to have been lasting

Negation

Simple form	V-ing form
I ought not to last you ought not to last she ought not to last we ought not to last you ought not to last they ought not to last	I ought not to lasting you ought not to lasting she ought not to lasting we ought not to lasting you ought not to lasting they ought not to lasting
Perfect	V-ing perfect
I ought not to have lasted you ought not to have lasted she ought not to have lasted we ought not to have lasted you ought not to have lasted they ought not to have lasted	I ought not to have been lasting you ought not to have been lasting she ought not to have been lasting we ought not to have been lasting you ought not to have been lasting they ought not to have been lasting

Interrogative form

Simple form	V-ing form
ought to I last? ought to you last? ought to she last? ought to we last? ought to you last? ought to they last?	ought to I be lasting? ought to you be lasting? ought to she be lasting? ought to we be lasting? ought to you be lasting? ought to they be lasting?
Perfect	V-ing perfect
ought to I have lasted? ought to you have lasted? ought to she have lasted? ought to we have lasted? ought to you have lasted? ought to they have lasted?	ought to I have been lasting? ought to you have been lasting? ought to she have been lasting? ought to we have been lasting? ought to you have been lasting? ought to they have been lasting?

Interro-negative form

Simple form	V-ing form
ought I not to last? ought you not to last? ought she not to last? ought we not to last? ought you not to last? ought they not to last?	ought I not to be lasting? ought you not to be lasting? ought she not to be lasting? ought we not to be lasting? ought you not to be lasting? ought they not to be lasting?
Perfect	V-ing perfect
ought I not to have lasted? ought you not to have lasted? ought she not to have lasted? ought we not to have lasted? ought you not to have lasted? ought they not to have lasted?	ought I not to have been lasting? ought you not to have been lasting? ought she not to have been lasting? ought we not to have been lasting? ought you not to have been lasting? ought they not to have been lasting?