Standard English remains a quasi-fictional ideal, despite the numerous private organizations publishing prescriptive rules for it.

Style guides are less relevant for these languages since their academies set prescriptive rules.

"There is no prescriptive rule but they have to take steps to participate and address the security threats," he added.

Each test sentence used is therefore a valid member of the English language (although it may not necessarily conform to prescriptive syntactic rules).

Increasingly in the UK the regulatory trend is away from prescriptive rules, and towards risk assessment.

A second problem with prescription is that prescriptive rules quickly become entrenched and it is difficult to change them when the language changes.

The prescriptive rule was based on a descriptive observation.

Style guides are less relevant for such languages, as their academies set prescriptive rules.

Procedural and prescriptive rules should be avoided where possible to ensure legislation does not become obsolete.

Most of these prescriptive rules are really arbitrary.