1. ~わけがない (There is no way... / It is impossible that...)
* Na-adjective だ -> な / Noun N だ -> の / である
Meaning: Absolutely not, there is no way that could happen, it's impossible.
✓ An expression used when the speaker wants to strongly assert that there is no reason for something to happen.
2. ~どころではない / ~どころか (Far from... / Not just... but...)
* Na-adjective だ -> な / Noun N だ
Meaning: Far from being at this level (as expected), the reality is the exact opposite or even worse.
✓ The preceding and following clauses of どころか show two largely differing degrees or completely opposite states.
✓ It is often used to express that the situation in the second clause is much worse than the expected situation in the first clause.
3. ~ものか / ~もんか (Absolutely not / As if...)
* Na-adjective だ -> な / Noun N だ -> な
Meaning: Absolutely not, there is no way. (Used in spoken language).
✓ A strong negative expression, mixed with personal emotions (such as anger or dissatisfaction).
✓ Has a contracted form commonly used in conversation: 〜もんか.
✓ Women/girls often use a softer expression: 〜ものですか and 〜もんですか.
4. ~わけではない / ~というわけではない (It does not mean that... / Not necessarily...)
* Na-adjective だ -> な / Noun N だ -> の / な / である
Plain form (Nだ / Naだ) + というわけではない
Meaning: Not altogether, not exactly (partial negation).
✓ When used for partial negation, this sentence pattern is often accompanied by words expressing totality such as いつも (always), だれでも (anyone), どこでも (anywhere)... or 必ずしも (not necessarily, not always).
5. ~というものではない / ~というものでもない (It's not a matter of... / It doesn't mean that just because...)
* Na-adjective / Noun N (có thể giữ nguyên だ)
Meaning: Meeting the condition is not everything. (The nature of the matter is not that simple).
✓ This expression shows the speaker's perspective and feelings about the nature of things.
✓ Often used with conditionals (~ば、~たら) or ~からといって (just because...).
✓ Between the two, というものでもない is a softer expression.