How Come Or Why?
Basically, “
How come” is another way of asking "
Why", but it is considered to be more informal than “
Why.” The Oxford English Dictionary labels it as colloquial, and you’re more likely to see it on Twitter than in a corporate annual report.
Where we get the phrase “How come”?
Well, ”
how come" is believed to be short for "
how did it come about that," "
how is it that," or "
how comes it.” As we know, people love to shorten things. “
Pantaloons” became “
pants” and “
how comes it that” became “
how come.”
Usage of the phrase “How come”.
“
How come” differs from “
Why” in the word order of the question:
How come you didn’t leave?
Why didn’t you leave?