Originariamente inviato da dwarf78
forse il tuo amico non si e' informato bene o hai capito male... ti ho quotato le norme e i requisiti che la UK Border Agency richiede, mi sembra le tue informazioni non siano precise o coerenti con quanto espresso dall'agenzia.
There are seven requirements you need to meet before you apply:
you are aged 18 or over; and
you are of sound mind; and
you can communicate in English, Welsh or Scottish Gaelic to an acceptable degree; and
you have sufficient knowledge of life in the United Kingdom; and
you are of good character; and
you are the husband, wife or civil partner of a British citizen; and
you meet the residential requirements; or
your husband, wife or civil partner is in Crown or designated service outside the United Kingdom.
assume lui sia inglese quindi lei se rientra nei requisiti avra' ottenuto la cittadinanza UK purche':


Residential requirements

In order to demonstrate the residential requirements for naturalisation you need to:

have been resident in the United Kingdom for at least three years (this is known as the residential qualifying period); and
have been present in the United Kingdom three years before the date of your application; and
have not spent more than 270 days outside the United Kingdom during the three-year period; and
have not spend more than 90 days outside the United Kingdom in the last 12 months of the three-year period; and
have not been in breach of the immigration rules at any stage during the three-year period.
se ci ha impiegato piu' dei 3 anni, quindi i 5 che tu menzioni, vuol dire che non rientrava nei criteri di residenza o semplicemente rientrava nei criteri di Cittadinanza piu' generali (5 anni, vedi altro link)