求大神解释if引导的虚拟语气
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:英语作业 时间:2024/07/07 17:17:34
求大神解释if引导的虚拟语气
![求大神解释if引导的虚拟语气](/uploads/image/z/3940872-24-2.jpg?t=%E6%B1%82%E5%A4%A7%E7%A5%9E%E8%A7%A3%E9%87%8Aif%E5%BC%95%E5%AF%BC%E7%9A%84%E8%99%9A%E6%8B%9F%E8%AF%AD%E6%B0%94)
if引导 非真实条件句 分3种
与现在相反
if+主语+动词过去时(be用were)+.,主语+could/would/might/should+动词原形+.
与过去相反
if+主语+had been+ 动词过去分词.,主语+could/would/might/should+have+动词过去分词.
与将来相反
if+主语+should/were to+动词原形.,主语+could/would/might/should+动词原形+.
与现在相反
if+主语+动词过去时(be用were)+.,主语+could/would/might/should+动词原形+.
与过去相反
if+主语+had been+ 动词过去分词.,主语+could/would/might/should+have+动词过去分词.
与将来相反
if+主语+should/were to+动词原形.,主语+could/would/might/should+动词原形+.