You don't know the difference between "there" and "they're".
My iPhone obviously autocorrected the text.............. however I would be somewhat concerned that you have that little piece of text at the bottom of your posts.
You seem to be oblivious to your own messed up understanding of usage.
Began is the past tense form, as in The party began this morning. Begun is the past participle form, which is used to form the present perfect tense (has/have begun) and the past perfect tense (had begun) and is used in passive voice constructions (as in The novel was begun by the author but finished by his daughter).