IELTS Writing Task 1

6 Most Common Grammar Mistakes in Academic Task 1

Grammar accuracy accounts for 25% of your IELTS Writing score. Learn the most common mistakes — and practise fixing them with exercises.

How to use this guide: Read each grammar rule carefully, then complete the practice exercise. Check your answers at the bottom of each section.



Mistake 01
Verb Tenses
✓

Always check the graphic first — if the data is from the past, use the past simple. If it shows the present or future, use the present simple or future forms.

✓

Be careful with irregular past simple verbs — these are a very common source of errors.

Exercise — Write the past simple form
1. The percentage of students (go) _______ up in 2010.
2. The US (lead) _______ in student numbers.
3. It (become) _______ the most popular by 2012.
4. China (hold) _______ the top position in 2015.
5. The figures (keep) _______ rising until 2018.

Answers
1. went  |  2. led  |  3. became  |  4. held  |  5. kept



Mistake 02
Subject-Verb Agreement
Singular (use IS / WAS)
the figure • the number • everyone • none of the
Plural (use ARE / WERE)
both • a few • many • a number of • a couple of
Exercise — Choose is or are
1. The number of students going abroad is / are increasing.
2. A number of students is / are choosing to study abroad.
3. The figure for studying abroad is / are increasing.
4. None of the students is / are studying abroad.
5. Both of the students is / are studying abroad.
6. All of the students is / are studying abroad.
7. Everyone is / are studying abroad.
8. A couple of students is / are studying abroad.
9. Living in foreign countries is / are becoming more popular.
Answers
1. is  |  2. are  |  3. is  |  4. are  |  5. are  |  6. are  |  7. is  |  8. are  |  9. is



Mistake 03
Active vs. Passive Voice
Active
The figures show a sharp rise in 2010.
Passive (be + past participle)
A sharp rise can be seen in 2010.

Use the passive in Task 1 when:

✓With reporting verbs: A rise can be seen / observed / noted.
✓To link two sentences: Rainfall decreases in October. A similar drop can be seen in Spain.
✓With future predictions: Petrol use is estimated to have shrunk to 11% by 2028.
✓In process or map diagrams: The grapes are picked and collected to be juiced.



Mistake 04
Prepositions
Prepositions of Time
At — hours: at 19:00
On — days: on Monday
In — weeks, months, years, decades: in 2010, in the 1990s
Prepositions of Place
At — specific point: at the bus stop
In — enclosed space: in the garden
On — surface: on the wall



Mistake 05
Word Formation — Adjectives vs. Adverbs
Adjective (modifies a noun)
There was a dramatic increase.
Adverb (modifies a verb)
The figures dramatically increased.
Exercise — Choose the correct form
1. The number of students great / greatly increased throughout the period.
2. The number increased continuously / continuous throughout the period.
3. There was a dramatical / dramatic increase in students after 2005.
4. There was a large / largely increase in students after 2005.
5. The number was approximately / approximate 20,000.
6. The figures experienced a slightly / slight drop in 2015.
Answers
1. greatly  |  2. continuously  |  3. dramatic  |  4. large  |  5. approximately  |  6. slight



Mistake 06
Explaining Figures — Million & Percent
Million vs. Millions
✓ 20 million phones were sold. (with a number)
✓ Millions of students go abroad. (no number)
✗ 20 millions phones were sold.
Percent vs. Percentage
✓ increased by 109 percent. (with a number)
✓ The percentage of students increased. (no number)
✗ The percentage increased by 109 percentage.

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