This is Everyday Grammar. And I'm Kaveh.
He said that this is Everyday Grammar and he's Kaveh.
Umm…. What are you doing?
Oh, I thought you knew. We are covering Reported Speech.
Oh, OK. Well, she's Lucija.
REPORTED SPEECH is telling others what another person has said.
For example, "he said that this is Everyday Grammar and that he's Kaveh.""He" is the subject, "said" is the reporting verb, and everything else is the reported speech clause.
例如，he said that this is Everyday Grammar and that he's Kaveh.（他说这是《每日语法》栏目，他叫Kaveh），这句话中he是主语，said是引语动词，其他都是间接引语从句的成分。
When trying to use REPORTED SPEECH, you need to keep in mind four simple things:
You need to choose a reporting verb and tense. If you're reporting the recent information, keep the reporting verb in the present tense.
He says he IS hungry.
He says he IS hungry.（他说他饿了。）
If you're not reporting brand new information, you need to "backshift" the verb tense. Present comes to past, and past becomes past perfect.
You need to change the point of view. In other words, "I" becomes "he" or "she".
You need to decide whether to use "that" or "if."
That is a conjunction and is optional.
She says she is visiting Alice.
She says she is visiting Alice.（她说她在探望爱丽丝。）
She says that she is visiting Alice.
She says that she is visiting Alice.（她说她在探望爱丽丝。）
Use "if" to report a yes or no question.
Are you hungry?
Are you hungry?（你饿了吗？）
She asked if I was hungry.
She asked if I was hungry.（她问我是否饿了。）
And that's Everyday Grammar.