Native English speakers often treat some nouns as masses rather than separate items. That affects how you show quantities: you don't say "two informations" or "three furnitures." The most common slip is turning an uncountable noun into a plural or using "a/an" where it doesn't belong.
Use this compact, example-rich guide to spot and fix uncountable-noun errors quickly. Learn simple rewrite patterns for work, school, and casual contexts, a memory trick to remember the rule, and a short checklist to repair dubious sentences.
Quick answer
Many English nouns are uncountable (mass nouns): don't add -s or use a/an with them. Show quantity with a quantifier or a unit phrase (e.g., "pieces of software," "loaves of bread," "a bit of information") or swap to a countable alternative when it fits.
- Wrong: I bought three softwares. -
Right: I bought three pieces of software. - Use quantifiers (some, a little, much, a lot of) or unit phrases (a piece of, a loaf of) rather than plural -s for mass nouns.
- Match phrasing to the context: precise forms for work, neutral for school, relaxed but correct for casual speech.
Core explanation: countable vs uncountable nouns
Countable nouns name separate items you can enumerate: one chair, two files, three apples. Uncountable (mass) nouns name substances, concepts, or collections you measure or divide-water, information, software, advice, furniture, bread. You don't add -s to an uncountable noun to show quantity.
When you need an amount, pair the mass noun with a measure word or quantifier: pieces of software, loaves of bread, a piece of advice, some information.
- Common uncountable nouns: software, information, advice, furniture, knowledge, bread, luggage, equipment, homework
- Countable alternatives often available: program/app, file, chair, loaf, tip
- Wrong: I bought three softwares for the office.
- Right: I bought three pieces of software for the office.
- Wrong: She gave me many advices about the interview.
- Right: She gave me a lot of advice about the interview.
- Wrong: We need a information packet for students.
- Right: We need an information packet for students.
Grammar: quantifiers, articles and unit words
Use quantifiers (some, much, a little, a lot of) or unit phrases (a piece of, a loaf of, a bottle of) with uncountable nouns. Don't use the indefinite article a/an directly before an uncountable noun unless you add a unit: not *a information* but *a piece of information*.
When a countable substitute is natural, use it: a program, an app, a file. That often makes sentences clearer in work and school contexts.
- Some + uncountable: some information, some furniture
- A piece of + noun: a piece of software, a piece of advice
- Number + unit: three loaves of bread, two bottles of water
- Wrong: I need a informations about the deadline.
- Right: I need some information about the deadline.
- Wrong: He ordered three breads for the table.
- Right: He ordered three loaves of bread for the table.
- Wrong: We installed two new softwares yesterday.
- Right: We installed two new software packages yesterday.
Examples in context: work, school and casual
Choose phrasing that matches setting and tone. Reports and emails need idiomatic, precise forms. Academic writing prefers formal quantifiers. Casual speech can be looser, but avoid nonstandard plurals in writing.
- Work - Wrong: I bought three softwares; install them on all machines. -
Right: I bought three software licenses and installed them on all machines. - Work - Wrong: Please send me all the furnitures from the office. -
Right: Please send me all the office furniture. - Work - Wrong: We need two new hardwares for the lab. -
Right: We need two new pieces of hardware for the lab. - School - Wrong: The data shows many informations about the trend. -
Right: The data show much information about the trend. - School - Wrong: I collected three researchadvices from the interviewees. -
Right: I collected three pieces of advice during the interviews (or: three tips). - School - Wrong: She has many homeworks left. -
Right: She has a lot of homework left. - Casual - Wrong: I bought three jeans yesterday. -
Right: I bought three pairs of jeans yesterday. - Casual - Wrong: Give me some advices, please! -
Right: Give me some advice, please! - Casual - Wrong: I grabbed a bunch of knowledges from the lecture. -
Right: I picked up a lot of knowledge from the lecture (or: I picked up a few useful tips).
Rewrite help: step-by-step fixes and rewrite patterns
Spot a possible error, then: identify the noun, ask whether you can count it directly, and either add a unit/quantifier or pick a countable substitute.
Templates you can copy:
- Number + unit + of + noun → three pieces of software
- Some / a lot of + noun → some information / a lot of information
- Replace with a countable word → three apps / three programs
- Rewrite:
Wrong: I bought three softwares. -
Rewrite: I bought three pieces of software. - Rewrite:
Wrong: She left two advices on my desk. -
Rewrite: She left two pieces of advice on my desk. - Rewrite:
Wrong: We need a informations packet. -
Rewrite: We need an information packet (or: We need some information).
Try your own sentence
Test the whole sentence rather than a phrase alone. Context usually clarifies whether you need a unit phrase or a countable substitute.
Fix your own sentence: a quick checklist
Run these five fast checks when a plural or quantity looks off:
- Identify the noun you're counting.
- Can you count it as separate items? (Yes → keep countable; No → mass noun.)
- If mass, add a unit/quantifier (pieces of, a loaf of, some).
- Or substitute a countable word if that fits (app, program, tip).
- Read the sentence aloud to check naturalness.
- Example: I bought three softwares → identify: software = mass → I bought three pieces of software.
- Example: She offered many advices → advice = mass → She offered a lot of advice (or three pieces of advice).
- Example: He has lots of knowledges → knowledge = mass → He has a lot of knowledge.
Real usage and tone: what sounds natural where
Formal writing favors precise unit phrases and countable alternatives: "two software packages," "a significant amount of information." Neutral or conversational writing can use "some" or relaxed phrasing-still avoid nonstandard plurals in writing.
In speech you may hear nonstandard forms from learners or in quick chat. That's common; keep standard forms for written and professional contexts.
- Formal: two software packages / a substantial amount of information
- Neutral: some information / several pieces of software
- Casual: two apps / a bunch of info (informal)
- Work: The company purchased three software licenses to upgrade its systems.
- School: I have some information about the exam schedule.
- Casual: I grabbed a bunch of info from the website.
Memory trick and common lists
Mnemonic: picture a blob (mass) versus separate boxes (countable). If the noun behaves like a blob-divideable but not individual pieces-use a quantifier or unit: "a bit of knowledge" → "a lot of knowledge" or "a piece of knowledge" when you need a single item.
Commonly misused mass nouns to memorize: advice, information, software, furniture, luggage, knowledge, bread, equipment, traffic, homework.
- When in doubt: use "some + noun" or "a piece of + noun" as a safe repair.
- Common mass nouns: advice, information, software, furniture, luggage, equipment, homework
- School: I have many homeworks → I have a lot of homework.
- Usage: The room has three furnitures → The room has three pieces of furniture (or list the items: three chairs and a table).
Similar mistakes, hyphenation and spacing notes
Related errors: adding -s to data (note: data is plural in formal use but often treated as uncountable), creating nonstandard plurals like advices or furnitures, and using the wrong article with mass nouns. Watch for false friends from other languages.
Hyphenation and spacing tips: use hyphens when a compound adjective precedes a noun (a three-piece toolkit). For SI units in formal writing put a space before the unit: "3 kg." These details improve polish but don't change countability rules.
- Wrong forms to watch for: datas, advices, furnitures, informations
- Hyphen: a three-piece suit; no hyphen after number when it's not an adjective: I bought three pieces of software.
- Spacing: use a space with metric units in technical writing (3 kg) and stay consistent in documents.
- Wrong: I found many equipments in the lab. -
Right: I found a lot of equipment in the lab. - Wrong: We measured 5cm on the drawing. -
Right: We measured 5 cm on the drawing. - Wrong: I have three-year university degree. -
Right: I have a three-year university degree.
FAQ
Can I ever say "softwares"?
Not in standard English. "Software" is an uncountable noun. Use "software packages," "pieces of software," or "applications" when you need a countable form.
Is "data" countable or uncountable?
Formally, data is the plural of datum and may be treated as plural in scientific writing ("the data are"). In everyday use data is often treated as an uncountable mass noun ("the data is available"). Follow your audience or style guide.
How do I write numbers with units (3kg vs 3 kg)?
In technical and formal writing place a space before the SI unit: "3 kg." Casual or brand contexts sometimes run the unit together, but be consistent with your style.
What quantifier should I use with "advice"?
Use "some advice," "a piece of advice," or "a lot of advice." Don't say "advices." For multiple discrete tips say "three pieces of advice" or simply "three tips."
Quick check: how can I fix "I bought three softwares"?
Replace the plural with a unit phrase or a countable alternative: "I bought three pieces of software," "I bought three software packages," or "I bought three apps."
Want a fast sanity check?
If you're unsure, paste the full sentence into a grammar checker that flags mass-noun issues and suggests unit phrases or countable alternatives. A quick scan catches awkward phrasing before it reaches a reader.
You can try a grammar tool to get suggested rewrites (for example, converting "I bought three softwares" into a natural, standard form) and short explanations you can learn from.