Three very difficult questions

(1) following are some meaningful expressions:

It is the first time she has ever skated. (present perfect) first time + ever
It is only the third time she has skated on a frozen lake.

2012-06-24 10:52:10 補充：
(2) meaningful sentence with present perfect continuous tense:

She has been skating all day without taking a rest.

(3) meaningful sentence with present perfect tense:

She has skated in this rink since she was five.

2012-06-24 11:00:46 補充：
1. present perfect
It is the third time she has skated.

2. present perfect continuous
She has been skating all day without taking a break.

3. present perfect
She has skated in this rink since she was five.

2012-06-25 15:38:29 補充：
Yes, I've been dumb enough to answer the dumbest question of yours.

Have a look of these 2 sentences:

I have lived in Hong Kong for two years.
I have been living in Hong Kong for two years.

從文法角度，兩句都正確，但意思上有分別。
你的問題沒有上下文，難以給你答複。

She has been skating (grammar) for the 3rd time.(ordinal no.)
The form of a verb that expresses actions completed by the present or a particular point in the past or future,formed in English with part of the verb have AND THE PAST PARTICIPLE OF THE MAIN VERB(=HAS BEEN SKATING).If it is not future perfect,past perfect,then it is present perfect.

更改第一題：


1. 下句的"she has been skating" 是 present perfect continuous 還是present perfect?

It is the third time she has been skating.

2012-06-24 21:30:56 補充：
你對第一題的理解完全是錯的，至於第二和第三題亦有相當的商榷之處。

2012-06-26 17:04:10 補充：
過幾天我會發表我的睇法。

2012-06-26 21:47:04 補充：
正確答案如下：

1.這是 present perfect

2. 情況一：當skating是名詞時，這句是 present perfect，其結構和第一題的句子一樣
情況二：當skating 是動詞時，這句是present perfect continuous 。

3. 承第二題的答案，先說情況一，由於skating是名詞，所以只能以present perfect表達，不能轉做present perfect continuous。再說情況二，由於skating是動詞，所以能轉做present perfect，即She has skated.

2012-06-26 21:48:06 補充：
如果不明白何為有兩種情況，請儘早揚聲，我會儘量解答。