Read each pattern and its example, then write your own sentence on the line.
〜たものだ V-ta + ものだ（よく〜たものだ）
Recalls what someone often used to do in the past, with a nostalgic tone. Typically spoken by an older speaker looking back; not for one-off past events.
学生のころはよく徹夜したものだ。 Back in my student days I used to pull all-nighters a lot.
〜ものがある V-dict / i-adj / na-adj な + ものがある
Says that something has a certain quality the speaker senses strongly: 'there is something ... about it'. Slightly literary; common in reviews and commentary.
彼の演奏には人を引きつけるものがある。 There is something about his playing that draws people in.
〜なりに N / plain form + なりに（名詞修飾は なりの）
Means 'in one's own way, within one's own limits'. Acknowledges limited ability or standing while praising the effort; neutral, slightly polite.
私なりに考えて出した結論です。 This is the conclusion I reached after thinking about it in my own way.
〜だけのことはある N / V-dict / V-ta / i-adj / na-adj な + だけのことはある
Says a result is fitting given the effort, training or reputation behind it: 'it lives up to it, no wonder'. Praising tone; often paired with さすが.
さすが有名店だけのことはある、味が違う。 It really lives up to its fame as a famous restaurant; the taste is different.
〜とは限らない Plain form / N + とは限らない
Denies that something is always true: 'not necessarily'. Used to counter a generalization; neutral register, very common in essays and discussion.
高い物がいつもいいとは限らない。 Expensive things aren't necessarily always good.
〜にほかならない N + にほかならない（理由なら plain form + からにほかならない）
Asserts emphatically that something is precisely this and nothing else. Formal and written; common in editorials, speeches and academic prose.
今回の成功は皆の努力の結果にほかならない。 This success is nothing other than the result of everyone's effort.