直接引语和间接引语转换中said told asked的问题

转换的时候这三个词语怎么转换啊，哪个是直接的，哪个是间接的~~~什么时候用哪个~~搞不清楚额~~~高手讲讲

引用别人的话有两种方式，一种是讲述别人的原话，并把它放在引号里，这叫直接引语；另一种是用自己的话来转述别人，并且不能用引号，这就是间接引语。直接引语和间接引语之间可以互相转换。
She said "My brother doesn't want to go there." [直接引语]
她说：“我哥哥不想去那儿。”
She said that her brother didn't want to go here.[间接引语]
He said to her, "I'll help your brother with his English."[直接引语]
他对她说：“我将帮你弟弟学英语。”
He told her that he'd help her brother with his English
"ls everybody here?"the teacher asked.老师问道：“大家都到齐了么？”
The teacher asked if / whether everbody was there.

he said that he did not like his brother.间接引语 he says :"i do not like my brother."直接引语 转换时注意时态和人称的变化。