1. ～（よ）うと（も） / ～（よ）うが
Adjective A い -> かろう + と（も） / が
Adjective Na / Noun N -> だろう / であろう + と（も） / が
Explanation: Indicates that no matter what condition occurs in the first clause, the event or result in the second clause is completely unaffected.
✓ The second clause often expresses strong will, a firm decision, or an unwavering judgment.
✓ Often used with hypothetical degree words such as たとえ, いかに, and どんなに.
2. ～（よ）うと～まいと / ～（よ）うが～まいが
* Group II/III verbs: V ます + まい hoặc Vる + まい
* Exception: する -> するまい / すまい
Explanation: The same verb is repeated in affirmative and negative forms to mean that whether the action is done or not, the result remains unchanged.
✓ The second clause expresses firm determination or judgment.
3. ～であれ / ～であろうと
Explanation: Presents a hypothetical person, thing, position, circumstance, or interrogative and means that regardless of that case, the result in the second clause is unaffected.
✓ The second clause often expresses judgment or determination and commonly appears with たとえ or どんな.
4. ～たところで
Explanation: Means that even if one tries the action in the first clause, nothing will change and the effort will be useless.
✓ The second clause is a negative judgment such as uselessness or ineffectiveness; it does not express the speaker's intention or hope.
✓ Often used with いくら, どんなに, or いまさら.
5. ～ば～で / ～なら～で / ～たら～たで
Adjective Aい -> ければ / かったら + Aい / Aかった + で
Adjective Na -> なら + Aな + で
Explanation: The same word is repeated to show that even if a certain state occurs, things will not necessarily turn out well and a different problem may arise.
✓ It often points out that something may seem desirable, but once it actually happens, it brings its own difficulties.
