The most common grammar mistakes in IELTS Writing are subject-verb agreement errors, article misuse, tense inconsistency, preposition mistakes, pluralisation problems, and sentence fragments. Candidates also lose marks for double comparatives, incorrect gerund or infinitive patterns, and inaccurate use of countable versus uncountable nouns.

Grammar is a core scoring area in IELTS Writing and Speaking. Even strong ideas can score lower if sentence control is weak or repeated grammar mistakes affect clarity. To reach Band 7 and above, you usually need both a good range of structures and enough accuracy that errors do not distract the examiner.

Subject-verb agreement means the verb must match the subject in number and person. For example, singular subjects take singular verbs and plural subjects take plural verbs. In IELTS, mistakes like 'She don't' or 'The number of people are' reduce grammatical accuracy and can hold back your Writing and Speaking score.

Improve your grammar by focusing on repeated error patterns rather than trying to memorise every rule at once. Practise short correction drills, rewrite your own sentences, review model answers, and get feedback on Writing and Speaking so you can see which mistakes are affecting your score most often.

There is no single IELTS overall band score for every UK visa route. The requirement usually depends on the visa type and the CEFR or SELT level attached to that route. For example, family routes often begin at A1 and later move to A2 or B1, while current Skilled Worker rules can require B2 for some new applications from 8 January 2026. Always check the latest route-specific guidance on GOV.UK before booking a test.