Translation of "아니어도" in English

저 아니어도 힘들었을 텐데

Like, they had enough to deal with.

꼭 물질적인 구체가 아니어도 됩니다.

It didn't have to be only a material sphere, in fact,

만약, 그런 방법이 아니어도 된다면?

What if it didn’t have to be this way?