present perfect tense造句

• The verb must be in the present perfect tense
  动词必须用现在完成时态。
• "recently " has the widest use, in positive and negative statements and questions, with the past tense and the present perfect tense
  “recently”用法最广，可用于肯定式陈述句、否定式陈述句及疑问句中，与过去时态和现在完成时态连用。
• To grasp the usage of the present perfect tense
  掌握现在完成时态的用法
• present perfect tense
  过去完成时
• The present perfect tense is always connected with present time ， hence it is net used with “ yesterday ” ， “ last year ” ， etc
  现在完成时总是和现在有关，所以它不能和“昨天”、“去年”等一起用。
• present perfect tense is used for an action at an unspecified time in the past, or an action continuing until now
  现在完成时指的是在过去某个不确定的时间发生的事情，或者是一直持续到现在的动作
• When you ask about something that started in the past but continues to the present time, you use the present perfect tense, e . g
  当你谈论在过去开始但是一直持续到现在的某事时，用现在完成时态，例如
• "recently " has the widest use, in positive and negative statements and questions, with the past tense and the present perfect tense
  “recently”用法最广，可用于肯定式陈述句、否定式陈述句及疑问句中，与过去时态和现在完成时态连用。