有現在完成式既問題想問問大家

My brother finished washing the dishes just now.

2015-04-04 02:18:49 補充：
Sequence of events in the past:

1. My brother started washing the dishes.
2. I called my friend.
3. While my brother was washing the dishes, I was talking with my friend on the phone.
4. When I was talking with my friend, my brother finished washing the dishes.
5. As soon as my brother finished washing the dishes, I told my friend that he had just finished washing the dishes.

Direct Speech: "My brother finished washing the dishes just now," I told my friend.

Indirect speech:
I told my friend that my brother had finished washing the dishes just then.
I told my friend that my brother had just finished washing the dishes.

"My brother has washed the dishes.我細佬洗左碟

My brother has just finished washing the dishes 我細佬剛剛洗完碟

希望這兩句都是現在完成式令你見到分別o

Your Chinese is very unclear !
The present perfect:-

My brother has just finished washing dishes
since (a point of time)to substitute me
as another dish-washer
for your phone-call period interposed.

最理想的講法是:

My brother just finished washing dishes.