Beware of the dogs. This is considered a sentence because the subject, "you", is implied. This type of sentence is not too uncommon, some examples are:
Keep off the grass. The subject is "you".
Hope to hear from you soon. The subject is "I".
See you later. The subject is "I'll".
Get your feet off the table. The subject is "you".
Philippians 3:2 Beware of dogs, beware of evil workers, beware of the concision.
Beware of The Dogs was created on 1991-06-04.
Yes they had an album called Beware of the Dogs..
10 example of compound sentence
If you are using it as a character in a sentence who is talking it can work. For example " beware! For what happened on that island will haunt you forever!"
Pardon me, but I recommend that you beware of this repair shop.
Beware of lightning!
Beware the telephonist in the corner...
This is an imperative sentence. It gives a command to do something.
yes But I would beware of the alligators!
How Men Become Dogs - 2013 Beware of Dog 1-8 was released on: USA: 26 June 2013
Beware the missile's trajectory.