I have had my green card since 7/2008 and have been physically present for over 30 months since i received my GC. However, I am planning to be away in the UK from September 2012 until July 2013. If I returned to the USA for a short period within the 10 months that I plan to be away (e.g. return for 2 weeks in February 2013) would my continuous residency be disrupted? (In July 2013 I will be returning to the USA permanently to pursue my PhD--an 8-10 year study path).