Period of tenancy : 2 years + 1 year (Two years with an option to renew for another year)
date of commencement : 1st feb 2010
date of termination : 31st Jan 2012 (写两年到期的)
Tenancy Commencement Date : 1st feb 2010
Tenancy End Date : 31st Jan 2012
Or
Tenancy Period : 1st feb 2010 - 31st Jan 2012
Option to Renew
Option Period : The option to renew the Term has to be exercised by the Tenant not earlier than XXX and not later than XXX.
Renewed Term : 1 year
Renewed tenancy period : 1st feb 2012 to 31st Jan 2013