Need用法汇总！！

常见的need用法：

1. need + something： 某人需要某物；

2. need + to do something：某人需要做某事

3. need + doing：某物需要被...

4. need + something done：某人需要让他人帮自己做某事

need的否定式用法：

1. do not something：某人不需要某物

2. don't need to do / need not(/needn't) do something：某人不需要做某事

3. 难点：didn't need to do something 某人过去没必要做某事 eg. I didn't need to tell him who she was - he already knew before. 

4. 难点：needn't have done 某人本来没有必要做某事 eg. We needn't have ordered so much food. 

need的进行时用法：

！！need不存在进行时！！

I need a rest. 我需要休息一下  √ 

I am needing a rest. ×