I am a USA citizen, also a PR of canada. How long can I be gone from the US and till retain my citizenship?

Question

I know that I have to be in Canada for 2 years out of every 5, but I don't seem to be able to find the requirements for the USA in the same time

period. Are there any rules on this and how could I find them for myself? tks.

Answer 1

You can leave the US indefinitely and still be a US citizen.  

Answer 2

You can stay outside of US indefinitely if you are US Citizen, as long as you file Tax.  

Answer 3

For ever.