Question

Cómo hacer una invitación de cumpleaños en inglés
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Answer 1

Es como hacer una invitación de cumpleaños en español, solo tienes que cambiar el idioma, ejemplo:

Dear Friends,

I hope you all are doing fine. I have something very special to tell you which is that my birthday is on its way and I want you all to come over to my place on the (Fecha: Día/mes) at (hora) for the birthday party I have arranged for all the friends and family.  

I hope to see you guys soon and also expect you all to be there as you all are very special to me.