用must,need以及needn't和mustn't开头的疑问句回答的肯定和否定回答形式是什么?

Must I do that?Yes,you must; No,you needn't
Need I do that?Yes,you must; No,you needn't
Needn't I do that?Yes,you must(不,你必须这么做)；No,you needn't(是的,你不必这么做)
Mustn't I do that?Yes,you must(不,你必须这么做)；No,you needn't(是的,你不必这么做)