Using お早うございます right next to a -です form


If I have a sentence, for example

お早うございます 名前はエリアスです

Is having both ございます and です unnatural? because it feels weird. In which case
should I use each of them in this example?




おはようございます is a set phrase, and for this reason it's usually written entirely
in hiragana. It's a very common greeting that means "good morning" and,
although it's polite, it is definitely an everyday word.

Since you can consider おはようございます a standalone word by itself, rather than the
adjective 早い conjugated in the [classical form
ウ音便](https://japanese.stackexchange.com/questions/765/%EF%BD%9E%E3%81%86%E3%81%94%E3%81%96%E3%81%84%E3%81%BE%E3%81%99-keigo-%E3%81%84-adjectives)
(~おうございます), it's perfectly fine to use it alongside です (as Sundowner pointed
out in his [comment](https://japanese.stackexchange.com/questions/97043/how-
do-i-use-keigo#comment158004_97043)).

The entire sentence

> おはようございます、名前[は]エリアスです

is in the polite style (丁寧語), which is the easiest of the three keigo styles
(being the others the honorific 尊敬語 and the humble 謙譲語).

Moreover, and probably because 丁寧語 is the standard way of speaking politely in
your everyday life, when talking about Keigo sometimes people only mean the
honorific 尊敬語 or the humble 謙譲語 forms, because that forms are the ones that
have different rules and different sets of vocabulary that are not used
everyday and are harder to learn.

丁寧語 might be classified as Keigo, but you don't really need to learn specific
ways to "use" it beyond using the ます conjugation instead of the plain form for
verbs, adding です after いadjectives and adding a few honorific prefixes ご or お
here and there.

