English verb conjugation
OUGHT TO UNDERTAKE

Irregular verb: undertake - undertook - undertaken

Affirmation

Simple form	V-ing form
I ought to undertake you ought to undertake she ought to undertake we ought to undertake you ought to undertake they ought to undertake	I ought to be undertaking you ought to be undertaking she ought to be undertaking we ought to be undertaking you ought to be undertaking they ought to be undertaking
Perfect	V-ing perfect
I ought to have undertaken you ought to have undertaken she ought to have undertaken we ought to have undertaken you ought to have undertaken they ought to have undertaken	I ought to have been undertaking you ought to have been undertaking she ought to have been undertaking we ought to have been undertaking you ought to have been undertaking they ought to have been undertaking

Negation

Simple form	V-ing form
I ought not to undertake you ought not to undertake she ought not to undertake we ought not to undertake you ought not to undertake they ought not to undertake	I ought not to undertaking you ought not to undertaking she ought not to undertaking we ought not to undertaking you ought not to undertaking they ought not to undertaking
Perfect	V-ing perfect
I ought not to have undertaken you ought not to have undertaken she ought not to have undertaken we ought not to have undertaken you ought not to have undertaken they ought not to have undertaken	I ought not to have been undertaking you ought not to have been undertaking she ought not to have been undertaking we ought not to have been undertaking you ought not to have been undertaking they ought not to have been undertaking

Interrogative form

Simple form	V-ing form
ought to I undertake? ought to you undertake? ought to she undertake? ought to we undertake? ought to you undertake? ought to they undertake?	ought to I be undertaking? ought to you be undertaking? ought to she be undertaking? ought to we be undertaking? ought to you be undertaking? ought to they be undertaking?
Perfect	V-ing perfect
ought to I have undertaken? ought to you have undertaken? ought to she have undertaken? ought to we have undertaken? ought to you have undertaken? ought to they have undertaken?	ought to I have been undertaking? ought to you have been undertaking? ought to she have been undertaking? ought to we have been undertaking? ought to you have been undertaking? ought to they have been undertaking?

Interro-negative form

Simple form	V-ing form
ought I not to undertake? ought you not to undertake? ought she not to undertake? ought we not to undertake? ought you not to undertake? ought they not to undertake?	ought I not to be undertaking? ought you not to be undertaking? ought she not to be undertaking? ought we not to be undertaking? ought you not to be undertaking? ought they not to be undertaking?
Perfect	V-ing perfect
ought I not to have undertaken? ought you not to have undertaken? ought she not to have undertaken? ought we not to have undertaken? ought you not to have undertaken? ought they not to have undertaken?	ought I not to have been undertaking? ought you not to have been undertaking? ought she not to have been undertaking? ought we not to have been undertaking? ought you not to have been undertaking? ought they not to have been undertaking?