You can only stay 90 days at a time without a visa. However, you can spend 90 days in a European Union country, like Ireland, and then travel across the sea to the UK and spend 90 days there. And remember that Australia is not considered part of Europe. Basically it is 90 days per stay. Leaving the country and coming back creates a new stay technically.
Citizens can legally stay forever.
It depends how long does your visa allow you to stay in the US.
three months
to stay there legally, permenantly you have to pass a citizenship test
how long would you stay with us how long would you stay with us
Not legally.
to stay out of European affairs
To stay out of European affairs.
There is no requirement for the witness to be a citizen. As long as they are legally an adult it is sufficient.
How long can you stay in the USA on a esta visa
As long as you pay taxes and still have "ties with US" as proof of your intention to return to US and to continue to be a US citizen, its not a problem if you stay outside US.
nationalistss (: hope that helps.