Why Many Thai Students Struggle to Reach IELTS Speaking Band 7
By Outscore English
Every year, thousands of Thai students sit the IELTS exam hoping to achieve a Band 7 or higher. While many have strong reading and listening skills, speaking often becomes the biggest challenge.
The good news? Most of the obstacles are predictable and can be overcome with the right training.
Here are the five main reasons Thai students struggle to reach Band 7 in IELTS Speaking.
1. Translating from Thai Before Speaking
One of the biggest issues is that many students mentally translate their answers from Thai into English before speaking.
This causes:
- Long pauses
- Hesitation
- Loss of fluency
- Short, unnatural answers
IELTS examiners reward candidates who can speak smoothly and develop their ideas naturally. If you spend too much time translating, your fluency score will suffer.
Example
❌ “Umm… I think… maybe… because… how to say…”
✅ “I suppose the main reason is that public transport is extremely convenient in Bangkok.”
Outscore Tip: Practice answering simple questions quickly without translating. Focus on thinking directly in English.
2. Limited Vocabulary Range
Many Thai students rely on basic words such as:
- good
- nice
- bad
- happy
- very
While these words are correct, they don’t demonstrate the lexical range needed for Band 7.
Instead of:
❌ “Bangkok is very good.”
Try:
✅ “Bangkok is incredibly vibrant and offers a wide range of opportunities.”
Band 7 candidates can:
- Paraphrase ideas
- Use topic-specific vocabulary
- Use collocations naturally
- Express opinions precisely
The research found that limited vocabulary is one of the most common reasons students plateau around Band 6.
3. Grammar Errors That Never Disappear
Thai grammar is very different from English.
As a result, students often make mistakes with:
- Subject-verb agreement
- Tenses
- Articles (a, an, the)
- Plural nouns
Common examples:
❌ “She go to work every day.”
❌ “I have two book.”
❌ “I student.”
These mistakes may seem small, but repeated grammatical errors prevent candidates from reaching Band 7. Research on Thai learners shows that tense and subject-verb agreement errors are particularly common.
4. Pronunciation Problems Unique to Thai Speakers
Many Thai students are surprised to learn that pronunciation affects 25% of their Speaking score.
Common pronunciation challenges include:
- /r/ and /l/
- /v/ and /f/
- Final consonants
- Consonant clusters
- Word stress
- Intonation
Examples:
❌ “Think” → “Sink”
❌ “Very” → “Ferry”
❌ “School” → “Sakool”
Thai is a tonal language, while English relies heavily on stress and rhythm. This often results in speech sounding flat or unnatural to examiners.
The good news is that pronunciation can improve dramatically through shadowing, recording yourself, and targeted drills.
5. Lack of Real Speaking Practice
Perhaps the biggest issue is simple:
Many students study English for years but rarely speak it.
Traditional classrooms often focus on:
- Grammar exercises
- Memorisation
- Reading
- Test preparation
However, IELTS Speaking is a performance skill.
You cannot become a confident speaker by completing worksheets alone.
Students who achieve Band 7 typically:
- Speak English regularly
- Record themselves
- Receive feedback
- Practice answering unfamiliar questions
- Participate in mock speaking tests
The research highlights that many Thai learners hesitate because they fear making mistakes and lack real-world speaking experience.
How to Break Through the Band 6 Barrier
If you’re currently scoring Band 5.5–6.5, focus on these four areas:
1. Improve Fluency
Stop translating and start thinking in English.
2. Learn Band 7 Vocabulary
Study vocabulary by topic rather than memorising random word lists.
3. Fix Your Most Common Grammar Errors
Focus on accuracy before complexity.
4. Practice Speaking Every Day
Even 10 minutes of daily speaking can make a huge difference.
Final Thoughts
Reaching Band 7 isn’t about being perfect.
It’s about speaking clearly, confidently, and naturally while demonstrating a good range of vocabulary, grammar, and pronunciation.
Most Thai students already have the potential to achieve Band 7. The challenge is overcoming a few predictable habits that hold them back.
At Outscore English, we focus specifically on the issues Thai learners face most often, helping students build the confidence and skills needed to move beyond Band 6 and achieve their target score.
Don’t just pass your IELTS. Outscore it.

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