Question

let's 后面加动词原形还是v＋ing形式啊？

Answer 1

1.Let's后面动词使用原形。eg. Let's help you，我们帮你一下吧。
2.这种语句中let是使役动词，表示让，us为宾语，help you为宾语补足语。
3.常规情况下help you这种宾语补足语用动词不定式，形式为：let us to help you.但在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。如：
My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
I don’t like milk, but mother made me drink it. 我不喜欢牛奶,可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
所以正确语句是Let's后面动词使用原形。eg. Let's help you。
4.注意：
（1）当使役动词用于被动语态时,要补上在主动语态中省略的to(主要是指make,let和have很少用于被动语态)。
eg. I was made to drink it (by her).我被迫喝下去了。
（2） force, oblige等虽然也表示“使”,但它们后用作宾语补足语的不定式必须带to.eg
He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。

Answer 2

let’s 后面跟动词原形

Answer 3

let's+动词原形
如

Let's read English books.
让我们看英语书吧。

Answer 4

原形.
Let's do it together.
Let me help you.
也是原形.

Answer 5

原形.
Let's do it together.
Let me help you.
也是原形.