知り合いの先祖は有名な武士が先祖なので、その時代に生まれていたら今のように普通に話や食事をするとこはないので
"生まれた時代が違ったら彼と話をすることはなかっただろう"
仮定法を使います。
生まれた時代が違ったら (同じ時代に生まれていなかったなら)
If we had not been born in the same generation, I couldn't have talked with him.
If we had not been born in the same generation, I would not have had any opportunity to talk with him.
If we had not been born in the same generation, I couldn't have had any opportunity to talk with him.
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