Expresses that a feeling, sensation, or thought arises spontaneously and strongly, beyond the speaker's control ('can't help feeling', 'can't stop'). Often used with mental states and spontaneous impressions (気がする, 思える, 悲しい). More formal and written than ~てしょうがない/~てたまらない.
[い-adj く-form て / な-adj で / Verb て-form] + ならない
彼の言葉が気になってならない。
Kare no kotoba ga ki ni natte naranai.
I can't help worrying about what he said.
気になって (て-form) + ならない = an uncontrollable, spontaneous worry
祖母のことが心配でならない。
Sobo no koto ga shinpai de naranai.
I can't stop worrying about my grandmother.
心配で (て-form of な-adj 心配) + ならない = worry that won't subside
もう一度会えるような気がしてならない。
Mou ichido aeru you na ki ga shite naranai.
I can't shake the feeling that we'll meet again.
気がして (て-form) + ならない = a spontaneous, persistent intuition
• Register: formal / written; favors spontaneous feelings, sensations, and thoughts. • Very common with 気がする, 思えて, and emotion words. • Describes emotions that well up naturally, not deliberate actions.
The JLPT rarely asks whether you recognise a pattern — it asks which of several similar patterns fits. These are the ones ~てならない is tested against.
~てたまらない stresses physical/emotional unbearableness and is casual; ~てならない is formal and leans toward spontaneous mental states.
~てしょうがない is everyday conversational; ~てならない is more literary and often pairs with thoughts and intuitions.
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