Formal subjunctive and mandative structures

Use the base-form subjunctive after recommendations, demands and expressions of necessity in formal English.

When do we use it?

Recognize mandative that-clauses and alternatives with should.

Form

After suggest, insist or essential that, use subject + base verb; should is also possible in British English.

• They recommended that he apply.
• It is essential that she be informed.

Key contrast

At C1, grammar choices shape emphasis, stance, information flow and register as well as basic correctness.

Common mistakes

• They suggested that he applies. → They suggested that he apply.
• It is vital that she is told. → It is vital that she be told.

Remember

Use the base-form subjunctive after recommendations, demands and expressions of necessity in formal English.

Quick check

• Identify the focus, stance or relationship between clauses.
• Check inversion, complementation and reference carefully.
• Prefer the option that is both grammatical and appropriate for the register.