Which is correct ? (grammar)

Does Francis play the guitar often?
Does Francis often play the guitar?

Both sentences are correct.

"Often" is an adverb of frequency. It usually goes in the middle position of a sentence.

Position of “often” in a sentence:
(1) If there is no auxiliary, you put often in front of the verb, unless the verb is be. If the verb is "be" (am, is, are, was, were... etc), you put often after it.
Francis often plays the guitar.
I often see him at school.
She is often late for class.

(2) If there is an auxiliary, you put often after it.
He had often pointed this out to her. (had ~ auxiliary)

(3) If there is more than one auxiliary, you put often after the first auxiliary.
The facts had often been distorted.

(4) If the sentence is short, you can put often at the end of the sentence.
Francis plays guitar often
They go out to dinner often.

In negative sentences, often generally comes before not if it emphasizes the negative otherwise it comes after.
I often do not agree,
I do not often have headache.



2013-09-21 09:22:28 補充：
"What kind of films do you like ?"
I like adventure films.

Other choice:
documentary films, romance films, horror films, action films, science fiction films,
comedy films, war films, mystery films, children's films, ...etc.

Grammatically speaking, both are correct.

No.2 is not wrong. As an question writing exercise, It is converted from the statement: Francis often play the guitar. This is a descriptive or objective statement, so is the question.

Verbally English speaker is likely to use No. 1, it is because your question is wanting to know is it "often" or "how often", so English speakers will put the "often" at the end to highlight the term in asking. The answer could be "Yes, often" or "No, not often".

More often, English will ask question that is not "yes/no often" but
How often does Francis play the guitar?

當然係第二個correct
則係Does francis often play the guitar?