不得不再上去英文

Ihavetohavechinesethismonday口语中这么说别人肯定听得懂，至于说两个have重复其实haveto只是个词组，并不冲突。这么说比较常用也很实际，还顺口，好记

1.上课: have+科目上数学课 have math上语文课 have Chinese 2. 不得不have to 2.“这个星期天我不得不上语文课”可以译为：I have to have Chinese this Sunday.3. 如果觉得这种说法中的两个have重复了，可以用“cannot but”来表示不得不，即：I cannot but have Chinese this Sunday.

是的.He has to go to school by bike.过去式必须用had to，如果没特别强调，则使用一般式

是的，“不得不”的英语说法是 have to, 后面跟动词不定势 have to do something.他不得不骑自行车上学，英语是： He has to go to school by bike. 或 He has to ride a bike to go to school.因为他是第三人称单数，所以用 has to.