the boy often relaxes a long time after school 改为否定句

The boy seldom relaxes a long time after school
seldom有否定含义
如果仍有不懂的可以继续追问我我不懂的很多。。 The boy doesn't often relax a long time after school 这个是合适的不懂的比如说 doesn't 什么意思。还有 relax和 relaxes不懂 我很白的。。求指教.The boy often relaxes a long time after school. 按照一般思维改否定句：提取助动词does （三单）加上not →doesn'tdoesn't often是部分否定，该否定句一般全部否定最好用never 从不The boy never relaxes a long time after school. relax 动词，放松（relaxes三单形式）下面的是 The boy _ often _ a long time after school. 散弹形式是什么意思？不明白。。还有些别的问题：what other animals do you like 动物为什么加s？at night a koala get up and eat leaf get加S吗？为什么不明白~第三人称单数，动词加S这些老师应该上课说过，一个提问拒绝回答多个问题现在已经和你说明白了，不采纳为不义