N5 — outside your level filter
Is said whole, with nothing composed onto it and takes no だ/です, so there are no forms to conjugate.
そうか
soukaI see (casual)N5expression
Example sentences2
そうか、じゃあ仕方ないね。
sou ka, jaa shikatanai ne.
I see, well, it can't be helped then. casual
そうか、なら一緒に行こう。
sou ka, nara issho ni ikou.
I see, then let's go together. casual