You say "family", so I'm presuming you have kids.
File a 1040, form 2555-EZ, and form 1116. If you have kids, you're entitled to child tax credit. Any year you have child tax credit, you may save money by filing just Form 1040 and 1116, and NOT filing the 2555-EZ. all the forms and instructions are on
www.irs.gov.
You file as single when you are single, Married filing separate when you are married with no kids, and for years when you had kids, you may be able to file as Head of Household. You can file as Head of Household when your husband is an NRA and you provide 1/2 or more of the financial support to the household.
The easiest way to do this is to buy tax software from E-bay or a tax software website. TurboTax is a good programme. The programme guides you through the whole process and ensures you get your taxes done right.