全く～ない

全く＋ない is a strong, emphatic form used to say that something does not happen or is not true at all. It heightens the negation more than just ない or ～ません. It’s commonly used with verbs, i adjectives, or phrases where the speaker wants to express total absence or complete lack. This is more informal and expressive, suitable for everyday conversation and casual writing. Be careful not to use it with strong or taboo topics in formal situations; for formal emphasis consider milder forms like ぜんぜん～ない or 全然～ない in casual speech and まったく～ない in similar contexts.