A student wrote the following:

Is it possible for you to use a wired connection from next time on, because wifi tends to be an unreliable connection?

I corrected this by changing "because" to "since," but when she asked me why, I couldn't explain. Can someone help me understand why "since" must be used here?

  • I may also ask, why? :)
    – Maulik V
    Commented Jun 6, 2018 at 2:46
  • There is no practical difference; it's a matter of preference. Commented Jun 6, 2018 at 17:48

1 Answer 1


When you use because, you are firmer about the reason and it's the most important part. On the other hand, since/as are milder! Also, as/since generally go at the first place and because in the end. Well, I don't say that, BBC does! :)

Here it is:

Because is used when the reason is the most important part of the sentence or utterance. The because clause usually comes at the end.

But in the other cases, it's well-known and thus, less important -

As and since are used when the reason is already well known and is therefore usually less important. The as or since clause is usually placed at the beginning of the sentence.

If you ignore the question formation, you may straightforwardly ask with a different structure:

Is it possible for you to use a wired connection because WIFI seems to be unstable?

Or, if you love 'since,' informally you can ask -

Since WIFI seems to be unstable, is it possible for you to use a wired connection now on?

  • Hi Maulik, I found this information about "because" and "since" as well, which would point to both being possible options. However it's quite subjective as far as grammar rules go, so that's why I was wondering if someone could clarify definitively whether or not "because" is wrong in that question, and if so, why.
    – Eva
    Commented Jun 6, 2018 at 16:10
  • I already wrote the other way to tell the same thing. Certainly, because is not wrong according to the sources.
    – Maulik V
    Commented Jun 7, 2018 at 5:11

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