I think in the sentence below, I shouldn't use "due to" as I start it with "One of the main reasons" but I would like to use "due to" because the reason is just a simple phrase. How can I restate this sentence with "due to"
I may say "this is due to ...", but it is just one reason not the only reason.
As a matter of fact, many native speakers of English have problems with spelling correctly. One of the main reasons for this is due to the complex orthography of English.
Update: I myself find this alternative
Part of the problem is due to the complex orthography of English.