Conjugaison du verbe anglais OUGHT TO UNDERSTUDY

I ought to understudy
you ought to understudy
he ought to understudy
we ought to understudy
you ought to understudy
they ought to understudy

I ought to be understudying
you ought to be understudying
he ought to be understudying
we ought to be understudying
you ought to be understudying
they ought to be understudying

I ought to have understudied
you ought to have understudied
he ought to have understudied
we ought to have understudied
you ought to have understudied
they ought to have understudied

I ought to have been understudying
you ought to have been understudying
he ought to have been understudying
we ought to have been understudying
you ought to have been understudying
they ought to have been understudying

I ought not to understudy
you ought not to understudy
he ought not to understudy
we ought not to understudy
you ought not to understudy
they ought not to understudy

I ought not to understudying
you ought not to understudying
he ought not to understudying
we ought not to understudying
you ought not to understudying
they ought not to understudying

I ought not to have understudied
you ought not to have understudied
he ought not to have understudied
we ought not to have understudied
you ought not to have understudied
they ought not to have understudied

I ought not to have been understudying
you ought not to have been understudying
he ought not to have been understudying
we ought not to have been understudying
you ought not to have been understudying
they ought not to have been understudying

ought to I understudy?
ought to you understudy?
ought to he understudy?
ought to we understudy?
ought to you understudy?
ought to they understudy?

ought to I be understudying?
ought to you be understudying?
ought to he be understudying?
ought to we be understudying?
ought to you be understudying?
ought to they be understudying?

ought to I have understudied?
ought to you have understudied?
ought to he have understudied?
ought to we have understudied?
ought to you have understudied?
ought to they have understudied?

ought to I have been understudying?
ought to you have been understudying?
ought to he have been understudying?
ought to we have been understudying?
ought to you have been understudying?
ought to they have been understudying?

ought I not to understudy?
ought you not to understudy?
ought he not to understudy?
ought we not to understudy?
ought you not to understudy?
ought they not to understudy?

ought I not to be understudying?
ought you not to be understudying?
ought he not to be understudying?
ought we not to be understudying?
ought you not to be understudying?
ought they not to be understudying?

ought I not to have understudied?
ought you not to have understudied?
ought he not to have understudied?
ought we not to have understudied?
ought you not to have understudied?
ought they not to have understudied?

ought I not to have been understudying?
ought you not to have been understudying?
ought he not to have been understudying?
ought we not to have been understudying?
ought you not to have been understudying?
ought they not to have been understudying?