过去式能与since连用吗？ since能否与过去完成时连用�1...
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It's three years since he came here .
\u5982\u679cSINCE\u540e\u63a5\u8fc7\u53bb\u7684\u65f6\u95f4\u70b9\uff0c\u4e00\u822c\u662f\u7528\u73b0\u5728\u5b8c\u6210\u65f6\uff0c\u4e0d\u7528\u8fc7\u53bb\u65f6\uff0c\u5982
He has studied here since two years ago.
since\u5728\u4e00\u822c\u60c5\u51b5\u4e0b\u5e94\u8be5\u662f\u73b0\u5728\u5b8c\u6210\u65f6\u7684\u6807\u5fd7,\u53ea\u6709\u5728\u540e\u9762\u8ddf\u4e86\u5177\u4f53\u7684\u8fc7\u53bb\u65f6\u95f4\u70b9,\u4e14\u6574\u4e2a\u53e5\u5b50\u80cc\u666f\u662f\u8fc7\u53bb\u65f6\u65f6,\u5b83\u7684\u4e3b\u53e5\u624d\u80fd\u7528\u8fc7\u53bb\u5b8c\u6210\u65f6.\u8fc7\u53bb\u5b8c\u6210\u65f6+since+\u8fc7\u53bb\u65f6 We have been friends since junior school.
Since when have you started playing basketball ?
望采纳，谢谢
不能。since引导的句子用一般过去时态，而主句只能用现在完成时态。
可以的。since可以用在现在完成时，也可以用在过去时
这种用法很少见，绝大部分时候since都是跟完成时，因为完成时指过去发生的事情现在仍在延续，符合since'自从'的意思。
这种用法，但是还是可以用。例如:it is already since he was a bandmaster. 意思为他不是乐队指挥三年了
绛旓細銆愮瓟妗堛戯細渚嬪彞锛Since he went to senior high school, he has worked very hard.鑷粠浠栦笂楂樹腑锛屼粬涓鐩村緢鐢ㄥ姛銆
绛旓細杩欐椂鐨勪富璇悗闈㈣鍔犵幇鍦ㄥ畬鎴愭椂锛屼篃灏辨槸has鎴杊ave done锛屽洜涓猴紝since鏄〃绀衡滆嚜浠庘﹁捣涓鐩村埌鐜板湪鈥濈殑鎰忔濄
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绛旓細杩欏彞璇濈炕璇戞垚涓枃灏辨槸:鑷粠鎴戞潵鍒拌繖閲岋紝浜嬫儏宸茬粡鍙戠敓浜嗗彉鍖栥since鍚庨潰鎺ョ殑鈥滄垜鏉ュ埌杩欓噷鈥濓紝鏄繃鍘诲彂鐢熺殑浜嬶紝鎵浠ョ敤杩囧幓寮 鈥滀簨鎯呭彂鐢熷彉鍖栤濇槸杩囧幓鍙戠敓鐨勪簨鎯呭鐜板湪浜х敓浜嗗奖鍝嶏紙鎴戞潵鍒拌繖閲岀殑鏃跺欎簨鎯呭彂鐢熷彉鍖栵紝鐜板湪杩樺湪鍙樺寲锛夛紝琛ㄧず杩欑鐘舵佽鐢ㄧ幇鍦ㄥ畬鎴愭椂銆傚笇鏈涜兘瀵逛綘鏈夋墍甯姪銆
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