否定形式:can't / couldn’t have done 例:She must have come here last night. She can't have gone there 6. may have done sth可能做过某事 否定形式:may not have done 例:Philip may have been hurt seriously in the car accident. 7.might have done sth 或许...
更多内容请点击：【中考英语】万能亮点句型,英语作文高分必杀技!