A letter to John

Hi John,

I want to invite you to my cousin's party. The party will be next weekend, on Saturday. My cousin has passed his driving test and we want to celebrate it. I want you come to the party. I hope to hear from you soon.

Bye,

Alberto.

[[Please, if you correct me, can you give a mark between 1(bad)-5(excellent)? Thank you!]]

I can understand it so at least a 3; the ideas you are expressing are relatively simple however. Depending on how long you have studied, it could be a little higher or lower. You used past perfect "had passed" when you only needed present perfect.  Gracias por aprender ingles