A friend of mine is coming this evening.
Tomodachi ga konban kimasu.
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
tonight; this evening
to come (spatially or temporally); to approach; to arrive; to come back; to do ... and come back; to come to be; to become; to get; to grow; to continue; to come from; to be caused by; to derive from; to come to (i.e. "when it comes to spinach ...")