expression
Very polite ます-form corresponding largely to あります, used for the existence or location of things, services, information, etc. In 〜でございます, it functions as a very polite 'is/are.'
See also: 御座る
お手洗いは二階にございます。
The restroom is on the second floor.
こちらが本日の資料でございます。
These are today's materials.
auxiliary verb
be doing; be in a state of having done
Highly formal auxiliary after the て-form of a verb, especially in service or official language. Often appears as 〜してございます for something prepared, arranged, displayed, or otherwise put into a state by the speaker's side.
商品は一階に展示してございます。
The products are displayed on the first floor.
auxiliary verb
did; have done
Dated auxiliary use in the form 〜ましてございます. Modern Japanese normally uses forms such as 〜ました or other polite expressions instead.
古い丁寧な文では、「ただ今参りましてございます」のような形が使われた。
In older polite writing, forms such as 'I have just arrived' with 参りましてございます were used.