You get a lot of young people in this town.
この町には若者がたくさんいる
You got it!
そのとおり
You greedy pig!
この食いしん坊！
You have (only) yourself to thank for it.
そいつは君の自業自得さ
You have a good reason to be worried.
心配するのはもっともです
You have [You've got] me there.＝There you have (got) me.＝((略式))Got me.
（その点では）負けたよ，（答えられず）やられた［参った］な
You have to register (your name) at the hotel.
ホテルで記帳のこと
You have to submit your application before the end of this month.
今月中に申請書を提出のこと
You haven't lived if [until] .....
（…を）してこそ人生というものだ；ぜひとも…すべきだ
You helped me through the rough patches.
君は大変な時期を乗り越えるのを助けてくれた
