Can't afford it, can't stand it: 不起 / 不了
Some potential complements are so common they've become words of their own. V不起 means "can't afford (to)": 买不起 "can't afford to buy", 吃不起 "can't afford to eat (there)". V不了 (liǎo!) means "physically can't manage": 受不了 "can't stand it", 吃不了 "can't finish (the food)".
Add the time-critical pair 来得及/来不及 ("there's still time / too late") and you have the survival kit. One booby trap: 看不起 doesn't mean "can't see" — it means "to look down on." "Can't see" is 看不见.
Examples
Common mistakes
Related grammar points
See it in a story
Read this pattern in context: Can't Take It Anymore (Part 1) · The Picnic That Almost Wasn't (Part 1) — free graded stories with tap-to-reveal pinyin and translations.
