Dear Andy.
1.Thanks/ invitation.
=>thanks you for your invitation
2.I/be afraid/we/can not come/your party.
=>I am afraid we can not come to your party.
3.We/going away/New Year.
=>we are going away on the New Year
4.I/give you/ring/when/get back
=>I will give you a ring when we get back
5.Perhaps we/come/visit/February.
=>Perhaps we shall come and visit you in February.
LOVE
DIANNA