越来越【yuèláiyuè】

越来越 says a quality keeps growing as time passes. It goes in front of an adjective, and a 了 at the end marks the change as already under way.

Verbs of feeling and wanting take it too.

A negative goes after 越来越, as in the last example: 越来越不想, "less and less keen".

With 得

To say an action is done faster, better or worse over time, 越来越 goes after 得, not in front of the verb.

• × 他越来越跑得快 → 他跑得越来越快

No 很 or 更

越来越 already carries the degree, so 很, 非常 and 更 drop out.

• × 天气越来越很冷 → 天气越来越冷
• × 东西越来越更贵 → 东西越来越贵

More and more people

Before a noun, 多 or 少 takes 的: 越来越多的人, "more and more people".

When one change drives another ("the more you practise, the better you get"), use 越…越.