"He has already gone home."

Translation: 他已经回家了。

[Slade366]

Why don't we use 完？

[ThieumL]

完 means to complete, finish (doing) something. You can't use it here

[XiyS9M]

it's surprising though to a beginner. did complete going home.

[maartendoc]

已 (yǐ) = already/to stop/then
经 (jīng) = sacred book/to undergo/to endure

已经 (yǐjīng) = already

[linda437018]

can 回家 be separated, like 回了家? or is it no way?

[hadj.b]

I think you should put it at the end 回家了

[VaVuthea]

Can i put 了 in the middle?
他已经了回家。

[CasualArthur]

No, because "le" has to go after the verb

[fedes16]

Sure, but it's not obvious if the verb in this case is 回 (with 家 as an object) or 回家 (without object).

It seems reasonable to expect 家 to be the object.

Are you saying this is not the case?

[Gelukservaring]

Well in English 'to go home' is a fixed combination too, as if 'home' is part of the verb. It is not: 'to go to home'. It might well work the same way in Chinese.

[AnQuanDeXiWang]

Is le necessary if we use the word "already"?

[Lauren528736]

Maybe 了 is confirming that the verb is in the past?