〜をもってすれば・〜をもってしても
with (X's power) … could; even with X … couldn't
Noun + をもってすれば (positive) · Noun + をもってしても (negative)
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These two build on をもって, "by means of":
- をもってすれば: "with X, it would be possible". 彼の実力をもってすれば、優勝も夢ではない, "with his ability, winning isn't just a dream".
- をもってしても: "even with X, it's impossible". 最新の技術をもってしても、この病気は治せない, "even the latest technology can't cure this disease".
The noun is always something powerful: ability, skill, technology, a top expert, modern science. The second half is positive for すれば and negative for しても.
That makes them a natural pair for puzzles: check whether the result is possible or impossible, then pick the matching form.
Examples
彼の実力をもってすれば、優勝も夢ではない。
With his ability, winning isn't just a dream.
最新の技術をもってしても、この病気は治せない。
Even the latest technology can't cure this disease.
君の語学力をもってすれば、どこでも働ける。
With your language skills, you could work anywhere.
世界一の医師をもってしても、彼を救うことはできなかった。
Even the best doctor in the world couldn't save him.
今の科学をもってすれば、それは十分可能だ。
With today's science, that's entirely possible.