grammar → 越來越…
TSUMUGU · TBCL 3 (est.) · 語法
越來越… grammar point · tier 2 · 越來越… increasingly (more and more over time)
One quality climbs on its own as time goes on: more and more, increasingly.

Hook inherited from 越…越….

One quality climbs on its own as time goes on
框 · Frame
[subj] 越來越 [adj / mental verb] (了)
觸 · Trigger
One thing keeps shifting in the same direction over time, with no second cause named.
序 · The move
1Pick the single quality that is changing (好, 多, 冷, 喜歡).Is exactly one thing rising? If a second variable drives it, the point is 越…越… instead.
2Put 越來越 straight in front of that quality.No noun or number sits inside 越來越 — only the adjective or mental verb follows.
3Close with 了 if the change is news now.了 reports that the level has moved; drop it for a flat statement of the trend.
例 · Examples
1他的his中文Chinese (language)越來越more and moregoodchange-of-state marker
His Chinese is getting better and better.
界 · Boundary
越…越…
越來越 climbs one quality against time alone; 越…越… couples two variables — the first must rise to push the second. 越來越好 = better over time; 越走越累 = the more you walk, the more tired.
比 pins one fixed comparison between two things at one moment; 越來越 tracks the same thing rising across many moments.
他的中文越來越好。 (no 了, change unmarked) → 他的中文越來越好了。
天氣越來越冷天。 (noun dragged inside) → 天氣越來越冷了。
他越來越喜歡。 → 他越來越喜歡這裡。 (mental verb still needs its object)
English 'more and more' is one adverb dropped anywhere; 越來越 is a fixed three-syllable block that must sit immediately before the adjective or mental verb, never split.