while when前后各用什么时态呢 句子中有while前后分别用什么时态

when\u548c while\u540e\u9762\u5206\u522b\u8ddf\u4ec0\u4e48\u65f6\u6001

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\u4e24\u4e2a\u8fde\u7eed\u6027\u52a8\u8bcd\u540c\u65f6\u53d1\u751f\u53c8\u5177\u6709\u5bf9\u6bd4\u610f\u5473\u65f6\uff0c\u7528while\uff0c\u4e14\u4e3b\u4ece\u53e5\u65f6\u6001\u901a\u5e38\u4e00\u81f4\uff0c\u591a\u4e3a\u8fdb\u884c\u65f6\u6001

在都表示“当……的时候”时，while只接持续性动词或者说是动词的ing形式，而when则没有限制，短暂性动词和持续性动词都可以。至于ed，用while也只能接完成进行时。

扩展阅读：while when as 巧记忆 ... be doing when ... when while as 替换huan ... as soon as的用法 ... 双长用while从短用when ... 初中when和while图解 ... make sb do ... be about to do when ... when while前后时态 ...