A persistent failure to enforce the present law cannot be addressed by enactment of a new law that our courts would be required to set aside.

These include the persistent failure of uptake among a section of households, poor customer service and stubbornly low speeds.

Prior had previously been picked apart for his persistent failure to convert starts into substantial scores.

His international career was blighted by his persistent failure to turn up to training.

The result was persistent failure and defeat on every frontier.