不常用need do作为情态动词的时候可以用need+动词原形
I need repair the bike
只有need to do和need doing
一般是人+need to do如:I need to repair the bike(主动语态)
和物+need doing如:the bike need repairing(被动语态)
当然并没有指定主语一定是人或物我给出的只是习惯用法
不常用need do作为情态动词的时候可以用need+动词原形
I need repair the bike
只有need to do和need doing
一般是人+need to do如:I need to repair the bike(主动语态)
和物+need doing如:the bike need repairing(被动语态)
当然并没有指定主语一定是人或物我给出的只是习惯用法