.以下のの英語表現について教えてください。連絡

質問

１「彼に何度か電話したのに、連絡してくれません。 」
２「彼に何度か連絡したのに、彼に連絡が取れないんです。」

「ずっと連絡が取れていない（期間は特定しませんが一週間から1カ月ぐらいの感覚です）」という状況を表すのに完了形（現在形も入れていますが）を使用していますが、以下の用法は不自然な表現でしょうか？
1・I called him several times, but/ yet/though he hasn't been answering my calls.
・I called him several times, but/ yet/though ,he hasn't been answering me at all.
・I called several times ,but/ yet/though he hasn't called me back.

2・ I tried contacting/calling him several times, but/though/yet I haven't heard from him.
・ I tried contacting/calling him several times, but/though/yet I haven't been able to get hold of him.
・I called/contacted him several times but/though/yet I haven't been able to get hold of him.
・I called several times but/though/yet I can't get hold of him.（I can't get n touch with him at all.）
また、他に良い訳例があれば教えて頂ければ幸いです。
宜しくお願い致します。

回答No.1

Nakay702

＞1 「彼に何度か電話したのに、連絡してくれません。」
⇒以下のとおり、お書きの例文を添削する形で説明します。

＞・I called him several times, but/ yet/though he hasn't been answering my calls.
⇒I called him several times, but he hasn't answered me.
＊逆接の代表はやはりbutですね。「（今のところ）私への返事はない」は、普通に現在完了でいいはずです。（お書きのような現在完了進行形ではまず言わないと思います。）

＞・I called him several times, but/ yet/though ,he hasn't been answering me at all.
⇒I called a couple of times, (but) yet he hasn't responded (me).
＊「何回か」はa couple of timesとも言えます。yetは「今のところまだ（～ない）」、but yet で「それにもかかわらず」という意味になります。

＞・I called several times ,but/ yet/though he hasn't called me back.
⇒Though I have called him several times, he will not call me back.
＊譲歩の接続詞Though「（～である）けれども」は、主節でなく従属節につけるのが普通です。will not ～は、「～してくれない・くれそうもない」といったニュアンスです。

＞2 「彼に何度か連絡したのに、彼に連絡が取れないんです。」
⇒同じく、お書きの例文を添削する形で説明します。

＞・I tried contacting/calling him several times, but/though/yet I haven't heard from him.
⇒I tried contacting / to contact him several times, but I haven't heard from him.
＊I tried contacting / to contact him several timesはどちらも、「彼に何度か連絡を試みた」という感じです。（細かいことを言えば、try ～ingは、「実際にやってみる」、try to ～は、「～しようとする。）

＞・I tried contacting him several times, but/though/yet I haven't been able to get hold of him.
⇒I have tried contacting him several times, (but) yet I haven't been able to catch him.
＊I have tried contacting（現在完了）は、「これまで連絡を取ろうとしてきたが」という感じです。catch himは、文字通り、「彼を捕まえる」。

＞・I called/contacted him several times but/though/yet I haven't been able to get hold of him.
⇒I'm looking for him all the time, and yet I haven't been able to get hold of him.
＊I'm looking for him all the time「ずっと彼を探している」、and yet「それなのにまだ」。

＞・I called several times but/though/yet I can't get hold of him.（I can't get n touch with him at all.）
⇒Though I'm looking for him all the time, I can't get in touch with him at all.
I can't get in touch with himの代わりに、he has no contact「彼は連絡をくれない／連絡が取れない」と言うこともできると思います。

以上、不十分かも知れませんが、ご回答まで。