ただ + counter + も + negative

A reinforcement of the minimal-counter pattern: ただ(の) emphasizes 'merely, just,' added to a minimum quantity ([counter] + も) followed by a negative — 'not even a mere single X.' Doubles down on the absence: ただのひとこともいわない ('not a single word'), ただの一度も成功しない ('not even a single time successful').