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Chinese grammar - 'To become' - using 了 (le) to indicate change of state

'To become' - using 了 (le) to indicate change of state

The particle (le) in Chinese is used to indicate a change of state.

This usage signals that something has undergone a transformation or that a new situation has arisen.

It is commonly used with (biàn), which means 'to become' or 'to change'.

Examples:
孩子长大了。
háizi zhǎngdà le.
The child has grown up.

长大 (zhǎngdà) means 'to grow up'

孩子大了。
háizi dà le.
The child has grown/has become big.
他高了很多。
tā gāo le hěnduō.
He has gotten a lot taller.
我的手机坏了。
wǒ de shǒujī huài le.
My phone is broken (now)./My phone has broken.
他哭了。
tā kū le.
He is crying (now)./He started crying.
你醒了。
nǐ xǐng le.
You are awake (now)./You have awakened.

(xǐng) means 'wake up'

我们累了。
wǒmen lèi le.
We are tired (now).
他生气了。
tā shēngqì le.
He is angry (now)./He has gotten angry.

生气 (shēngqì) means 'angry' or 'to get angry'

你有钱了。
nǐ yǒu qián le.
You have money (now).
你瘦了。
nǐ shòu le.
You have lost weight.

(shòu) means 'thin'

他老了。
tā lǎo le.
He has aged.
花开了。
huā kāi le.
The flowers have bloomed.
天气变好了。
tiānqì biàn hǎo le.
The weather has turned nice.

(biàn) means 'to become' or 'to change'

天气变冷了。
tiānqì biàn lěng le.
The weather has become cold.
天气变暖和了。
tiānqì biàn nuǎnhuo le.
The weather has warmed up.

暖和 (nuǎnhuo) means 'warm'

她变胖了。
tā biàn pàng le.
She has become fat.

(pàng) means 'fat' or 'plump'