Make sure you write soon! / Keep in touch! / Drop me a line if you have time! Take care of yourself! / Look after yourself!
INFORMAL INTRODUCTION
INFORMAL/CASUAL INVITATION
We are writing to invite you... I am contacting you to invite you... We request the pleasure of your company… We ask you to be present with us at …
FORMAL SIGN-OFF
Yours, ... Your friend, ... Best wishes, ... All the best, ...
FORMAL BODY (ABOUT THE EVENT)
FORMAL GREETINGS
FORMAL CLOSINGS
FORMAL PURPOSE OF LETTER
FORMAL SITUATIONS OF INVITATION
The event is about … The festival celebrates… It includes …, …., and last but not least...
INFORMAL SITUATIONS OF INVITATION
INFORMAL GREETINGS
If you require more information ... For further details, contact ... Thank you for taking this invitation into consideration
INFORMAL SIGN-OFF
Sincerely, .../ Yours sincerely, … With appreciation,... Yours faithfully, …. Kind regards,...
INFORMAL CLOSING
Let's... Why don't we...? How about going to...?
How are you? / How are things (with you)? / How's it going? / How’s life? I hope you’re fine. / I hope you and your family are well.