They arrive home early.

他们到家很早。

youdao

If they had left home early this morning, they would arrive in half an hour.

如果他们今天一早就离开家的话，再过半小时他们就该到了。(从句说明过去，主句说明将来。)

youdao

In phase two, children should arrive at the TFP early in the morning and return home in the late afternoon.

在第二阶段，孩子们应早上很早到TF P治疗中心，然后傍晚才返回。

youdao

They arrive very early at school and sometimes don't go home until seven or eight at night.

BBC: Gove urges longer days and shorter holidays for pupils