When someone says "she has just arrived at school," it means that the person reached the school campus very recently, likely within the last few minutes. This phrase indicates that her arrival is current and may imply that she is now ready to begin her school day. It emphasizes the immediacy of her presence at the school.
as in "I just arrived from school" or " Why do you always just arrive whenever shcool is done?"
Joyce arrived from school in the afternoon.
it's "He arrived early at school", although i think the other one is correct too
Usually, it is 'Just in time' and basically means, for example, that to get to a bus stop just as the bus appears in the distance, means that you have arrived at the bus stop 'just in time' to catch the bus.
'have arrived' or 'has arrived' I have arrived you have arrived (singular) he, she or it has arrived we have arrived you have arrived (plural) they have arrived Examples are: My parents have just arrived from Australia. Whoopee, they've arrived.
theyhad arrived just before the meeting started.
Sorry I have not just arrived and it is not clear what help you require.
They arrived in France by means of airplane.
'Llegaste' is the 2nd person singular informal preterit of llegar - to arrive. It means, "you arrived."
"Llegue" means "arrive" in English.
has arrived
disembarked