Here come/comes a bus and a car

The subject is "a bus and a car."

I don't understand your response.

It should be "Here come a bus and a car".

Think of it this way: A bus and a car are coming.

Thanks, but when you use this is, you can indiviualize each item like this is a bus and a car, right?
isn't it possible to indiviualize the bus and the car with here comes too?

Two or more individual items joined with "and" make a plural subject.

Of course, in a conversation, when you begin with an adverb, followed by a subject-verb inversion, sometimes you don't know that the subject will be plural. And the verb is already escaped out of the bag.

Crossing a street:
Wait. Here comes a bus .... (oops, there was a car hidden behind the bus and I did

onizohere come a bus and a car, or here comes a bus and a car?

Either one. The rule is the same as for "There are" vs "There is".

There is/are a pen and a pencil on the table. / Here is/are a pen and a pencil.

You can use "is" as long as the first of the two (or more) items which follow is singular.
You can use "are" if you wish b