Countable and uncountable nouns
Advice, research, evidence, equipment — the nouns that never take an 's'.
Why it matters
Many high-frequency IELTS nouns are uncountable in English even when they are countable in other languages. Pluralising them is a common accuracy error that also affects article and quantifier choice.
The rules
Uncountable nouns have no plural and take a singular verb.
advice, research, evidence, information, equipment, knowledge, traffic, accommodation
Use 'a piece of', 'an item of' or a countable synonym to count them.
a piece of advice, a study (not 'a research')
Use much / little / less / an amount of with uncountable nouns.
There is less traffic on weekends.
Some nouns change meaning: 'experience' (knowledge) vs 'an experience' (an event).
She has experience in teaching. It was an unforgettable experience.
Model sentences
- There is growing evidence that remote work improves productivity.
- Universities should provide more affordable accommodation for students.
- Recent research has highlighted the risks of excessive screen time.
Common mistakes
Incorrect: Teachers give many advices.
Correct: Teachers give a lot of advice.
'Advice' is uncountable.
Incorrect: Researches show that…
Correct: Research shows that… / Studies show that…
Use 'studies' if you need a plural.
Incorrect: Less people use public transport.
Correct: Fewer people use public transport.
'People' is countable, so 'fewer'.
Band tip
Check yourself
Correct: 'The hotel provides many equipments for guests.'
The hotel provides a lot of equipment for guests.
___ (much/many) knowledge is lost when older workers retire.
Much
Correct: 'She gave me an useful information.'
She gave me some useful information / a useful piece of information.