Here are some examples of N2-level grammar with their meanings:

〜につれて (ni tsurete): As; in proportion to; with Example: 季節が変わるにつれて、気温も変化します。(Kisetsu ga kawaru ni tsurete, kion mo henka shimasu.) – As the seasons change, so does the temperature.
〜ずにはいられない (zu ni wa irarenai): Cannot help but; cannot refrain from Example: 彼女の美しさを見ると、感動せずにはいられない。(Kanojo no utsukushisa o miru to, kandou sezu ni wa irarenai.) – When I see her beauty, I cannot help but be moved.
〜ようとする (you to suru): To try to; to attempt to Example: 彼は諦めようとせず、最後まで戦い続けた。(Kare wa akirameyou to sezu, saigo made tatakai tsuzuketa.) – He did not try to give up and continued to fight until the end.
〜まい (mai): Probably not; unlikely to Example: 彼は遅刻するまいと、早めに家を出た。(Kare wa chikoku suru mai to, hayame ni ie o deta.) – He left home early so as not to be late.
〜について (ni tsuite): About; concerning; regarding Example: その問題について、私の意見を聞いてください。(Sono mondai ni tsuite, watashi no iken o kiite kudasai.) – Please listen to my opinion about that issue.
〜ながらも (nagara mo): Although; despite Example: 彼は忙しいながらも、効率的に仕事をこなしている。(Kare wa isogashii nagara mo, kouritsuteki ni shigoto o konashite iru.) – Although he is busy, he efficiently completes his work.
These are just a few examples of N2-level grammar points, commonly used in everyday conversation and written communication in Japanese.