present perfect continuous tense

常見例句

Today, we are going to talk about the present perfect continuous tense.
今天，我們談?wù)勈颤N是現(xiàn)在完成進(jìn)行時(shí)。
B. Rewrite the following sentences, using the present perfect continuous tense of the verbs in brackets.
重寫以下的句子，竝用括號(hào)裡動(dòng)詞的現(xiàn)在完成進(jìn)行時(shí)態(tài)。
The second function of the present perfect continuous tense is to talk about an action that started in the past and it is still happening.
太簡(jiǎn)單了。我們想說那種正在進(jìn)行的或者才剛剛停止的動(dòng)作，就用現(xiàn)在完成進(jìn)行時(shí)時(shí)態(tài)。