虚拟语气if的三种用法例句有什么
三种情况，(1)对过去，从句had done主句would/could/might/have done(2)对现在，从句：did /were主句：would/could/might do(3)对将来，should do/were to do/did.从句，更上一个一样。注意，“主将从现”原则。
1、现在时：当if引导的虚拟语气表示与现在事实相反时，主句谓语用could、would、should或might加动词原形，条件从句中的谓语用过去式。如：If we walk faster,we can get there earlier.如果我们走快一点，就能早点到达那里。
2、过去时：当if引导的虚拟语气表示与过去事实相反时，主句谓语用could、would、should或might加have再加动词原形，如：If I wear my clothes thicker,I won't catch a cold.如果我把衣服穿厚点，就不会感冒了。
3、将来时：当if引导的虚拟语气表示与将来事实相反时，主句谓语用could、would、should或might加动词原形，条件从句中的谓语用过去式。如：If it rains tomorrow,will you go shopping?如果明天下雨，你还会逛街吗？
虚拟语气if的结构1、表示与现在事实相反的情况：
从句：If+主语+动词一般过去时(Be动词用were)。
主句：主语+ should/would/might/could+do。
2、表示与过去事实相反的情况：
从句：If+主语+had+done。
主句：主语+should/would/might/could+have done。
3、表示与将来事实相反：
从句：①if+主语+were to do。
②if+主语+should+do。
③if+主语+动词一般过去式（be动词用were）。
主句：主语+should/would/might/could+do。
绛旓細渚嬪彞锛 If I had read the book, I would have told you about it.
绛旓細1,if鏉′欢浠庡彞鏄皳璇敤鍔ㄨ瘝杩囧幓寮,鍒欏悗闈㈢殑涓诲彞鏄儏鎬佸姩璇嶅姞鍔ㄨ瘝鍘熷舰 渚嬶細If I came tomorrow ,we would have the meeting.2,if鏉′欢浠庡彞鏄痺ere to褰㈠紡,鍒欏悗闈㈢殑涓诲彞涔熸槸鎯呮佸姩璇嶅姞鍔ㄨ瘝鍘熷舰 渚嬶細If it were to rain tomorrow ,the meting would be put off.3,if鏉′欢浠庡彞鏄痵hould do褰㈠紡,鍒欏悗闈㈢殑...
绛旓細1銆佷粠鍙ワ細If+涓昏+had+done銆2銆佷富鍙ワ細涓昏+should/would/might/could+have done銆3銆佷緥鍙ワ細If he had taken my advice锛宧e would not have made such a mistake銆傝〃绀轰笌灏嗘潵浜嬪疄鐩稿弽锛1銆佷粠鍙ワ細if+涓昏+were to do銆2銆乮f+涓昏+should+do銆3銆乮f+涓昏+鍔ㄨ瘝涓鑸繃鍘诲紡锛坆e鍔ㄨ瘝鐢╳ere锛夈4銆...
绛旓細1銆佽〃绀轰笌鐜板湪浜嬪疄鐩稿弽鐨勬儏鍐碉細浠庡彞锛欼f+涓昏+鍔ㄨ瘝涓鑸繃鍘绘椂(Be鍔ㄨ瘝鐢╳ere)銆備富鍙ワ細涓昏+ should/would/might/could+do銆2銆佽〃绀轰笌杩囧幓浜嬪疄鐩稿弽鐨勬儏鍐碉細浠庡彞锛欼f+涓昏+had+done銆備富鍙ワ細涓昏+should/would/might/could+have done銆3銆佽〃绀轰笌灏嗘潵浜嬪疄鐩稿弽锛氫粠鍙ワ細鈶爄f+涓昏+were to do銆傗憽if+涓昏+...
绛旓細if鐨鐪佺暐锛氬湪姝ｅ紡鏂囦綋涓紝鏈夋椂鍙妸铏氭嫙鏉′欢鍙ヤ腑鐨勮繛璇峣f鐪佸幓锛岃繖鏃朵粠鍙ラ渶瑕侀噰鐢ㄥ掕璇簭锛屽嵆锛氬皢were,had,should绛夊姪鍔ㄨ瘝鎻愬埌涓昏鍓嶉潰锛屼富鍙ヤ笉鍋氫换浣曞彉鍖栥渚嬪彞锛歴hould it rain tomorrow,we would staly at home.閿欑患鏃堕棿锛氭墍璋撻敊缁兼椂闂存槸鎸囦富鍙ュ拰浠庡彞鐨勫姩浣滀笉鏄彂鐢熷湪鍚屼竴鏃堕棿銆傝繖鏃讹紝闇瑕佹牴鎹剰鎬濋夌敤...
绛旓細if鐨勭敤娉 1銆乮f浣滀负杩炶瘝锛屽紩瀵兼潯浠剁姸璇粠鍙ワ紝琛ㄧず鈥滃亣濡傦紝濡傛灉鈥濈瓑銆傚湪澶嶅悎鍙ヤ腑濡傛灉涓诲彞鐢ㄥ皢鏉ユ椂锛屽垯if寮曞鐨勭姸璇粠鍙ョ敤涓鑸幇鍦ㄦ椂銆俥g:If it rains(浠庡彞) ,I will stay at home锛堜富鍙ワ級銆=I will stay at home if it rains.He will come if you invite him.濡傛灉浣犺浠,浠栦細鏉ョ殑銆2銆佷富鍙...
绛旓細1銆佸鐜板湪鎯呭喌鐨铏氭嫙 鏉′欢浠庡彞涓皳璇姩璇嶇敤涓鑸繃鍘诲紡锛屼富鍙ョ敤鈥渨ould/should/might/could+鍔ㄨ瘝鍘熷舰鈥濆舰寮忥紝琛ㄧず瀵圭幇鍦ㄤ笉鍙兘瀹炵幇鎯呭喌鐨勫亣鎯炽If I were you,I would choose to work in a small town.濡傛灉鎴戞槸浣狅紝鎴戜細閫夋嫨鍦ㄥ皬鍩庨晣宸ヤ綔銆傦紙浜嬪疄涓婃垜涓嶆槸浣狅級娉ㄦ剰锛氬湪鏉′欢浠庡彞涓紝濡傛灉璋撹鍔ㄨ瘝鏄痓e鐨...
绛旓細1銆佸鐜板湪鎯呭喌鐨铏氭嫙 鏉′欢浠庡彞涓皳璇姩璇嶇敤涓鑸繃鍘诲紡锛屼富鍙ョ敤鈥渨ould/should/might/could+鍔ㄨ瘝鍘熷舰鈥濆舰寮忥紝琛ㄧず瀵圭幇鍦ㄤ笉鍙兘瀹炵幇鎯呭喌鐨勫亣鎯炽If I were you,I would choose to work in a small town.濡傛灉鎴戞槸浣狅紝鎴戜細閫夋嫨鍦ㄥ皬鍩庨晣宸ヤ綔銆傦紙浜嬪疄涓婃垜涓嶆槸浣狅級娉ㄦ剰锛氬湪鏉′欢浠庡彞涓紝濡傛灉璋撹鍔ㄨ瘝鏄痓e鐨...
绛旓細if铏氭嫙璇皵鐨勭敤娉曞綊绾冲涓嬶細涓銆佽〃绀轰笌鐜板湪浜嬪疄鐩稿弽鐨勬儏鍐碉細1銆佷粠鍙ワ細If涓昏杩囧幓鏃讹紙Be鍔ㄨ瘝鐢╳ere锛夈2銆佷富鍙ワ細涓昏 should/would/could/might do銆3銆佷緥鍙ワ細锛1锛If I were you锛孖 would take an umbrella.濡傛灉鎴戞槸浣锛屾垜浼氬甫鎶婁紴銆(浜嬪疄锛氭垜涓嶅彲鑳芥槸浣狅級銆傦紙2锛塈f I knew his telephone ...
