"I will have bought a cell phone."

Translation: Εγώ θα έχω αγοράσει ένα κινητό.

[Speugenia]

When translating in GR one can definitely skip the "εγώ" and the "ένα" as they would only be used for emphasis.

Also "cell phone (US) / mobile phone (GB)" is "κινητό τηλέφωνο" in GR and should be accepted as correct. Or one could just say "cell / mobile = κινητό" as all countries/languages mainly use the short term of the device's name in my experience :-)

[Theo_Matrakas]

Added :)

[zulu734872]

Θα έχω αγοράσει κινητό still not accepted

[G.Georgopoulos]

Added, thanks!

[zulu734872]

Παρακαλώ so glad to be learning this wonderful language!