て当然だ
te touzen da
it's natural that; no wonder
[It's natural that; No wonder]
Connection: Verb て-form + 当然だ / 当たり前だ
Usage: Expresses that something is natural, expected, or goes without saying. Often used to justify or validate a situation.
Examples:
そんなに食べたら、太って当然だ。(If you eat that much, it's only natural you'd gain weight.)
練習しなければ、負けて当然だ。(If you don't practice, it's natural to lose.)
毎日勉強しているから、上手になって当然だ。(Since you study every day, it's no wonder you've gotten good.)