もし彼または彼女が新しいプロジェクトについて最初に意見を述べるなら、正しい決断ができるでしょう。

If he or she were to opine first about the new project, we could make the right decision.

もしあなたが敬意を持って意見を述べれば、議論ははるかに有意義なものになるでしょう。

If you expressed your opinion respectfully, the debate would be much more enriching.

もし皆さんがその問題について率直に意見を述べたならば、革新的な解決策が見つかったでしょう。

If you all were to openly share your opinions about the matter, we would find innovative solutions.

もし専門家たちが率直に意見を述べたなら、その会議は実り多い議論へと変わるでしょう。

If the experts were to express their opinions frankly, the meeting would become an enriching debate.