Sentence: You will probably taking over my tutorial groups.

[Trangpigi]

You will probably taking over my tutorial groups.
I don't really understand why we can write take +ing after will?

[Yuppie]

You can do that, it's only that there is a missing word, the sentence should sound as follows in proper english:

You will probably be taking over my tutorial groups.

[Jim Jim]

Yuppie is correct, but here's another answer.
You also could say, "You will probably take over my tutorial groups." or "Probably, you will take over my tutorial groups."

[Trangpigi]

thank you.