probably在句中位置主要体现在以下几种情况：

1.be动词后

She is probably in the classroom.

她很有可能在教室。

They were probably tired.

他们很可能是累了。

2.行为动词前

She probably thinks you are a nice person.

她很有可能以为你是一个不错的人。

He probably remembered your name.

他很有可能记得你的名字。

3.助动词 + probably + be/行为动词

She will probably be here tomorrow.

她明天或许会在这里。

His friend will probably support his decision.

他的朋友很有可能会支持他的决定。

She has probably been to Paris.

她很有可能去过巴黎了。

4.在否定句中，用于否定词前

比如：

probably won't （will probably not）;  

probably doesn't;  

probably didn't

He probably won't leave Beijing.

=He will probably not leave Beijing.

他很有可能不会离开北京。

She probably didn't remember your birthday.

她很有可能不记得你的生日了。

5.probably还常用于修饰句子

-Are you going to visit us?

-Yes, probably. /Probably not.

-你将要来拜访我们吗？

-是的，很有可能。/很有可能不是。

很有可能你还需要查看probably和possible的区别。