怎么将句子改成“be going to"形式?

怎么将句子改成“be going to"形式?
1.My parents take me to the park today.
这句是改成"My parents are going to take me to the park today."还是"My parents take me are going to the park today."?
2.His brother and his sister read books with him this evening.这句怎么改.?
3.I am a very tall boy.
The weather is sunny tomorrow.
The dusty Cinderella is a beautiful princess at midnight.
(这三句怎么改?）
请说明下改这类句子的规律,当有两个人物的时候怎么改?当已经有be动词的时候怎么改?
是在主语后面加"be going to"对吗?
比如说"My mother with me go to the park."如果改的话就是在"My mother"后面加"be going to",不是在"My mother with me"后面加"be going to".不知道这个理解对没?``~