Many a / more than one…
Many a, more than one + singular verb.
- Many a day has been passed in leisurely reading.
- More than one error was discovered in the wording of the document.
When a noun phrase contains more than one and a singular noun, the verb is normally singular.
- There is more than one way to skin a cat.
- More than one editor is working on that project.
- More than one field has been planted with oats.
When more than one is followed by of and a plural noun, the verb is plural.
- More than one of the paintings were stolen.
- More than one of the cottages are for sale.
When more than one stands alone, it usually takes a singular verb, but it may take a plural verb if the notion of multiplicity predominates.
- The operating rooms are all in good order.More than one is (or are) equipped with the latest imaging technology.
More than two, etc + plural.
- More than two mistakes have been made.