if (someone) wasn't there, if (someone) weren't there, if ... weren't; if ... hadn't been
海の詩だけれど―あなたに捧げたあなたがいなかったら詩など書かなかった
It is a poem about the sea—but I would never have written poetry if you, to whom I dedicated it, had not existed.
— イル・ポスティーノ (1994)
I don't know what would have become of me if you hadn't been there.
— エブリシング・エブリウェア・オール・アット・ワンス (2022)
If I hadn't been there, they would have had trouble finding fish for dinner.