This criterion evaluates how well the candidate can use a variety of grammatical structures accurately. It looks at both complexity and accuracy.

• Range: It refers to the use of simple and complex sentence structures. Candidates should show flexibility in using different tenses, clauses (subordinate, conditional, relative), and passive/active voice.
• Accuracy: It measures the correct use of grammar with minimal errors. Candidates should aim for few, if any, errors in subject-verb agreement, tense consistency, and word order.

1. Band 9: Uses a full range of complex sentence structures with almost no errors. Shows natural control over grammar.
2. Band 6: Can produce both simple and some complex sentence forms, but errors (e.g., tense, agreement) may occur regularly and affect meaning.