Explanation
Not necessarily true that if A, then B.
Formation
Verb-ば form + というものでもない
Detailed explanation
The ～ば～というものでもない grammar point is used to express that something is not necessarily true even if a certain condition is met. In other words, if A happens, it doesn't always mean B will happen.
Examples
Takai mono ga ii mono bakari de wa nai.
Expensive things are not always good.
Eigo ga dekireba, seikou suru to iu mono demo nai.
Just because you can speak English doesn’t mean you’ll succeed.
Mitame ga utsukushii kara to itte, kokoro mo utsukushii to iu mono demo nai.
Just because someone is beautiful on the outside, it doesn’t mean they’re beautiful on the inside.
Yuumei daigaku ni haireba, shourai ga antai da to iu mono demo nai.
Getting into a famous university doesn’t guarantee a secure future.
Practice
Grammar content sourced from hanabira.org.