已 and 已经 "already"
The adverb 已经 
expresses that the action has been completed or the state has been changed. In declarative sentences, it often comes with the past tense particle 了 .
In a sentence, we should put 已经 before a predicate. The predicate can be expressed by:
1) a verb or a verb phrase.
expresses that the action has been completed or the state has been changed. In declarative sentences, it often comes with the past tense particle 了 .
In a sentence, we should put 已经 before a predicate. The predicate can be expressed by:
1) a verb or a verb phrase. Pay attention
A verb phrase is a combination of a verb and an auxiliary word. The auxiliary word can be either an auxiliary verb or an object.
Examples
程老师已经回家了
Teacher Cheng has already gone home
chéng lǎoshī yǐjīng huí jiā le
我已经恢复好了
I have already recovered
wǒ yǐjīng huīfù hǎo le
2) an adjective.
Examples
你已经很瘦了，不用坚持减肥
You are already very thin, you don’t need to keep losing weight
nǐ yǐjīng hěn shòu le, búyòng jiānchí jiǎnféi
3) numerals and nouns indicating time: minutes, hours, years.
Examples
他已经35岁了，还是没结婚
He's already 35 years old and still not married
tā yǐjīng 35 suì le, háishì méi jiéhūn
已经十二点了，我们要出发了
It's already twelve o'clock. We have to go.
yǐjīng shí'èr diǎn le, wǒmen yào chūfā le
In written language, we should use 已 instead of 已经.
Examples
已完成了他的任务
She has already done her job
tā yǐ wánchéng le tā de rènwù
Pay attention
Be careful and do not confuse the characters 已 and 己.