be going to do的句式里是不是be going作谓语，to do作状语？

be going to do的句式里是不是be going作谓语，to do作状语？

不是。be going to本身是一个情态动词，表示“打算”，“即将”，“肯定”或“命令”，后面跟动词原形。be going to有现在式和过去式两种形式，如：
They are going to have the entrance hall painted white.
The ice is going to crack.
I am not going to have this.
I am going to oppose the proposal.
My sister is going to have a baby.
It is going to rain.
Now you are going to hurry.
希望我能帮助你解疑释惑。

也许是的。