Is said whole, with nothing composed onto it and takes no だ／です, so there are no forms to conjugate.
では、おげんきで
dehaogenkidetake care thenexpression
Example sentences2
では、おげんきで。またお会いしましょう。
dewa, ogenki de. mata oai shimashou.
Well then, take care. Let's meet again. formal
では、おげんきで。何かあったらいつでも連絡して。
dewa, ogenki de. nanika attara itsudemo renraku shite.
Well then, take care. If anything comes up, get in touch anytime. casual