[Grammar] where does this bus go?

[rock-onn]

I was standing in a bus stop in a foriegn state and a bus came. I wanted to know whether this bus go to my destination.

Three question came in my mind.

Where does this bus go?
Where do this bus go?
Where is this bus going?

I was totally confused since i dont know which one is right because my english grammar is so weak.

I would be very thankful for helping me.

My rational is here.

1.Since the bus is singular i must use "does" but not sure.

2.Since it is happening now i must use present continous tense.

so i am confused.

 

[emsr2d2]

You are right. The correct question is "Where does​ this bus go?"

 

[Tdol]

Some buses with the same number don't always reach the final destination of the line, so the third question would be a way of finding out if the bus goes to the terminus or stops before then.