Most abusers claim that they are disciplining animals for their behavior but go too far and unethically punish them.
The adjective is "weekend," because it is describing the noun "conference."
Today and tomorrow are also adverbs, not adjectives :)
Here's a few sentences with 'a'.
Billy helped a girl find her lost cat.
Georgia found a stray cat in an alley.
Remi got a suitcase for her birthday.
