Imran khan
Why we use present perfect
2017年4月16日 09:35
留言 · 2
The present perfect is formed from the present tense of the verb <em>have</em> and the past participle of a verb. 

We use the present perfect tense for something that started in the past and continues in the present:

She has lived in New York all her life

Note, however: We normally use the present perfect continuous for this: She has been living in New York all her life.

2017年4月16日
For an action that happened in the past, that has an impact on the present situation. Present tense of have and the past participle of the verb used.
2017年4月16日