Ich wünsche dir Frohe Weihnachten. (informal, used when you talk to one person)
Ich wünsche ihnen Frohe Weihanchten. (formal, can used for a single persons or groups)
Ich wünsche euch Frohe Weihnachten. (informal, for groups)
(German)
I wish you a merry christmas
i like ee, ü: Say “ee” as in see. while saying the sound, round your lips, sch like sh in shine, dir like dear, eu like oi in boil, w like v, ei like i, ch like a hissing cat.
Ich wün-sche dir/ih-nen/euch Fro-he Weih-nach-ten.