I have been taking a look at the verb approach, which is a verb that I find very interesting, containing many different meanings, and one from which works in many different ways. However, when talking about the verb approach that means something moving nearer something/one: I was able to hear the sirenes of the ambulance approaching to the local. Must "to" be proceeded after "approach" when it implies to say something moving nearer or getting closer to someone/thing? Is this how it was supposed to be: I was able to hear the sirenes of the ambulance approaching the local or otherwise?
Also, check these examples out: As I walked down the hill two thieves came out of an alley and approached to me
As I walked down the hill two thieves came out of an alley and approached me.
I can hear an airplane approaching us
I can hear an airplane approaching to us ?