精选优质文档-倾情为你奉上语法一点通现在完成时态语法点拨：现在完成时态基本用法用法（一）：谈论个人经历构成：have/has(助动词）+done(过去分词）例如：I have heard of the person. 我听说过这个人说明：常常与副词ever, never连用。 I have ever heard of the person.否定：主语 + have/has + not + done.疑问：Have/Has+主语+done.？注意：have/has been to 与have /has gone to用法（二）：表示“某动作从过去一直持续到现在”。 （持续的时间用for 或since 短语表达）构成：have/has + done + for + 时间段； have/has + done + since + 时间点此时与现在完成进行时态的用法相同。如：He has watched TV for half an hour. = He has been watching TV
