回复:入籍需要的时间
If you continue to meet this requierment:
在中国挺留没有超过6个月,我在美国是符合5年住满2.5年的规定 during all the pending time, you are fine. For example, if N400 takes a year till June 2010, then the 5 years prior to June 2010, you still need to live > 2.5 years in US, (not 2.5 in the past six years.)