I am applying for my mom's citizenship. She received her GC on 02/01 2014 and completes her 5 years of stay on 02/01/2019. She was out of the country for approximately 140 days (less than 6 months) from August 14th 2015 to Jan 17th 2016 during her continuous stay in US. How soon can she apply for citizenship? Can we go ahead and fill the forms.