Keep in mind that British nationality law (and UK immigration law in general) is much more precise and demanding than EU law.
There are three broad residence requirements for naturalisation.
Firstly, were you physically present in the UK at the start of the five year period immediately preceding the date of application? So, for instance, if you applied today (07th April 2021), you need to have been physically in the UK on 8th April 2016. That is a hard requirement and the Home Office has no discretion to disregard that requirement.
The other two requirements are absences for the five years and the one year immediately preceding the date of application. Discretion can be used in these cases, but discretion is granted according to rules and guidance. See from Page 16 of the
Naturalisation as a British citizen caseworker guidance.
Be aware that if you have exceeded absences in both the five and one year periods immediately preceding the date of application, you must prove "exceptional circumstances".
Carbon-12 wrote: ↑Wed Apr 07, 2021 6:31 pm
I also wouldn't have been in the country for the past 12 months before submitting my application
In my opinion, professional training abroad will not count as "exceptional circumstances" (which I would interpret as absence due to matters beyond your control). It is a choice to study abroad. And all applicants for naturalisation already have Settled Status or an equivalent, which gives them the ability to reside in the UK for the long term without being a British citizen.
The Home Office would likely take the view that you can apply for naturalisation after you have returned to the UK and resided in the UK for a year after your extended absences from the UK (thus bringing the absences in the year immediately preceding the date of application down significantly).
Keep in mind that if your naturalisation application is unsuccessful, you will only be refunded the citizenship ceremony fee of £80 and lose the rest of the fees.
I am not a lawyer or immigration advisor. My statements/comments do not constitute legal advice. E&OE. Please do not PM me for advice.