English verb conjugation
SHOULD UNDERTAKE

Irregular verb: undertake - undertook - undertaken

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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