This means "whether you do something or not." The result will be the same either way. It shows you do not care about the choice.
Verb [volitional form] + が + Verb [dictionary form] + まい + がPrimary
This means "whether you do something or not." The result will be the same either way. It shows you do not care about the choice.
私は、他人が認めようが認めまいが、自分の信じる道を歩む。
I will walk the path I believe in, whether other people approve or not.
彼が来ようが来まいが、会議は定刻通りに始めます。
Whether he comes or not, the meeting will start on time.
どんなに反対されようがされまいが、私たちの計画は揺るぎませんでした。
No matter how much we were opposed, our plan did not waver.
食べようが食べまいがあなたの自由だが、健康には気をつけてほしい。
Whether you eat it or not is your choice, but I'd like you to take care of your health.
時代が評価しようがしまいが、真の芸術の価値は変わらない。
Whether the era appreciates it or not, the value of true art does not change.
This is like "~u to ~mai to". Both mean "whether or not". This one can sound stronger. The other one is more common in polite talk. You can often use either one.
Don't use this when you want to say "I will not eat." You would use "食べない" instead.
Use this when you want to sound very formal. It makes your words sound serious. You can use it for rules or strong beliefs. People do not use it in everyday talk.
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