Originally Posted by royal999
... the book that I have, has no two-word imperative form.
Raymott wrote of a two-word imperative sentence, not of an imperative form. In 'do right', the verb is 'do' - that's the imperative form.
Thanks 5jj! I was mistaken!Happily, My book hasn't used it neither in imperative form "do!" nor in imperative sentence "do right!".