I haven't filed taxes since 2009, can I file my 2011 taxes only?

I haven't filed since 2009, I had my tax information from 2009 to 2011 sent to me from the IRS including all W-2's. I currently cant find the packet they sent to me because my aunt had it and misplaced it. I do however have my W-2 from 2011 and I need to file from that year to get my student financial... show more I haven't filed since 2009, I had my tax information from 2009 to 2011 sent to me from the IRS including all W-2's. I currently cant find the packet they sent to me because my aunt had it and misplaced it. I do however have my W-2 from 2011 and I need to file from that year to get my student financial aid rolling. Can I just file for 2011 and file 2009 and 2010 later?
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