Expressing "enough" with "gou"

Affirmative Form

In Chinese the word for "enough" comes before a verb more often than after an adjective.

够 + Verb / Adj. + 了

Sometimes you'll see an optional 了 added after the verb for emphasis (as in "no, really, it's enough!").

我们买了很多菜，够吃了。Wǒmen mǎi le hěn duō cài, gòu chī le.We bought a lot of food. It's enough for us to eat.
这些纸够用吗？Zhèxiē zhǐ gòu yòng ma?Are these paper good enough to use?
放心吧，我带的钱够花。Fàngxīn ba, wǒ dài de qián gòu huā.Don't worry. I've brought enough money to spend.

When it comes before an adjective, 了 is needed at the end of the sentence.

我对你够好了。Wǒ duì nǐ gòu hǎo le.I've been good enough to you.
别抱怨了，你够幸运了。Bié bàoyuàn le, nǐ gòu xìngyùn le.Stop complaining. You've been lucky enough.

Subj. + 不 + 够 + Verb / Adj.

Note that 了 can't be used when it's negated.

他觉得他女朋友不够漂亮。Tā juéde tā nǚpéngyou bù gòu piàoliang.He thinks his girlfriend is not pretty enough.
你说得不够清楚。Nǐ shuō de bù gòu qīngchǔ.You didn't speak very clearly.
这些菜不够吃，再点几个菜。Zhèxiē cài bù gòu chī, zài diǎn jǐ gè cài.These dishes are not enough to eat. Let's order some more.
这里太小了，不够坐。Zhèlǐ tài xiǎo le, bùgòu zuò.It's too small here. It's not big enough to sit.
你的包太小了，这些东西肯定不够放。Nǐ de bāo tài xiǎo le, zhème duō dōngxi kěndìng bùgòu fàng.You bag is too small. These stuff definitely can't fit in it.

Literally 够了 means "it's enough." the speaker is "getting sick of [doing] something" or "done with [doing] something." 这些动词比较有限。常用的是：吃、喝、玩、看、听等感官类的。

A few common examples:

我受 够了 ！Wǒ shòu gòu le!I had enough of it!
天天吃外卖，我们都吃够了。Tiāntiān chī wàimài, wǒmen dōu chī gòu le.We eat take-away every day. We're sick of eating it.
你玩够了没有？Nǐ wán gòu le méiyǒu?Are you done playing or not?