to do句子结构，invite sb

例句：We have been invited  to  dinner this Friday.

to dinner 是介词短语作状语。 to dine 是动词不定式作主语补足语。如果是invite sb. to diner，则 to dine 是动词不定式作宾语补足语。

invite sb to加名词，表示“邀请某人参加某项活动”，to后直接加名词，不属于不定式。

invite sb to do sth，表示“邀请某人做某事”，to后接不定式。

其它用法：

te+sb 邀请某人te+sb+to do sth 邀请某人做某事te+sb+to a place(指一个地方)邀请某人到某处

例句：

I would like to invite him to dance with me 我想邀请他和我一起跳舞。

He wants to invite you to have dinner.他想邀请你去吃晚餐。