Usage of in and with.

[James Steele]

I wrote: I seldom talk to my friends with English.
My teacher said I was wrong.
He corrected me: ...talk to my friends in English.

Is he right? Why am I wrong?

[xpert]

I wrote: I seldom talk to my friends with English.
My teacher said I was wrong.
He corrected me: ...talk to my friends in English.

Is he right? Why am I wrong?

... talk to Mary
... talk with Mary
... talk about Mary
... talk in (a language) French/ low whisper

Best of luck