Past Perfect v Present Perfect 現(xiàn)在完成時(shí)和過去完成時(shí)的區(qū)別
Past Perfect v Present Perfect 現(xiàn)在完成時(shí)和過去完成時(shí)的區(qū)別
Can you tell me the difference between the past perfect and the present perfect tense?
Various listeners
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This week Finn and Wang Fei are in the BBC Learning English restaurant, where they are ordering some tasty food such as 口水雞、羊肉串兒 and 回鍋肉。
While they are ordering the food, they ask each other if they have tried these foods before.
The questions they ask either use the past perfect or present perfect tense.
Listen to the programme to see if you can tell which tense is which.
Here is a simple guide to the difference.
1) Present perfect
We use the present perfect to describe or ask about something that happened at an unspecified time in the past. We use has or have with the past participle, for example:
Have you visited Paris?
Have you tried fish and chips?
2) Past perfect
We use it to describe a completed action that happened in the past, before another event in the past. This time we use had plus the past participle.
Had you visited Paris before you went to London?
If you have a question about the English language, email us at chinaelt@bbc.co.uk.
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