Does beware exist as anything other than an imperative?

[conuly]

I bewore the dog? I waswore the dog? I wasware the dog? I bewared the dog?

Comments

[ahsirakh.livejournal.com]

Why don't we say "Be wary of"?

Even though we should, you mean?

Because you don't beware the dog, you beware of the dog. "Beware" thus acts as a contraction for "be wary" or "be aware".