"They sing with me."

Translation: Mereka menyanyi dengan saya.

[Stewart1463]

Denganku?

[enigmajf]

that's correct

[Violet138039]

Bersama saya?

[enigmajf]

that's correct but sounds too formal. you can decrease the formality by just saying "bersamaku"

[HEda167749]

What is the difference between "bernyanyi" and "menyanyi?"

[lockers001]

I this case they are interchangeable, except ber- verbs are always intransitive (no object to act upon). Since singing does not act upon anything it makes no difference. This does not apply to all ber- vs. me- verbs.

[dont_tread_on_me]

Sama aku? Is it too informal for the course?

[enigmajf]

if it's not accepted then most likely it is