want有八种时态?(没有进行时）
试一下：
He wants to know what I have wanted to know.(一般现在时,现在完成时）
I will want what you will want.（一般将来时）
He wanted to come but failed.（一般过去时）
The boy had wanted to finish the job within ten minutes,but he still didn't appear.（过去完成时）
He told me that he would want to come the next day.（一般过去将来时）