ç°å¨è¿è¡æ¶ï¼be doing ä¾å¥ï¼I am doing my homework now. ç°å¨å®ææ¶ï¼have done ä¾å¥ï¼ i have finished my homework by now. ä¸è¬è¿å»æ¶ï¼yerstday lastweek lastyear lastmonth ...I went to my mom's office yesterday ä¸è¬å°æ¥æ¶ï¼will do sth be gonging to I will take this book to you tomorr
现在进行时 结构 主语+be动词(am/is/are)+V-ing。, 时间状语 look listen now 一般过去时 结构 主语+V-ed 时间状语 yesterday last week/month 现在完成进行时 结构 主语 +have/has+been+ V-ing 时间状语 ago短语 一般将来时 结构 主语+will+V原 主语+be动词(am/is/are)+going to do 时间状语 next 短语
第2个回答 2011-06-27
现在进行时:be dong sth 例句:I am doing my homework now. 现在完成时:have done 例句: i have finished my homework by now. 一般过去时:did → I went to my mom's office yesterday 一般将来时:will do sth I will take this book to you tomorrow 注意下特定的时间就能分辨出是什么状语从句了。。