ただの一いち度ども

expression

(not) even once; (not) ever

Fixed expression used with a negative verb to emphasize that something has never happened, not even a single time.

• 彼かれはただの一いち度ども約やく束そくを破やぶったことがない。

  He has never broken a promise, not even once.

• ただの一いち度ども海かい外がいに行いったことがありません。

  I have never been abroad, not even once.