Grammar fix
hard worker
diligent person
someone who puts a lot of effort into their work or studies and tries their best to do things well.
Hear it in context
Notice where the phrase sounds natural.
- Maria is a hard worker—she always finishes her tasks on time and pays attention to every detail.work
- In my opinion, being a hard worker is important because it shows you are reliable and can be trusted with responsibility.IELTS speaking
Fix the pattern
Pattern: hard worker (noun, countable): be a hard worker; as a hard worker; hard worker in/at [something]
WrongHe is a hardworker.
RightHe is a hard worker.
Two words as a noun ('a hard worker'); one word 'hardworking' only as an adjective ('a hardworking person').
Patternhard worker (noun, countable): be a hard worker; as a hard worker; hard worker in/at [something]
Use it right
Choose the version that sounds natural in speech.
'A hard worker' is the everyday compliment; 'industrious individual' is reference-letter language.
Build natural chunks
Words that usually travel with it.
a hard workerreallysuch aknown asreliable
Don't confuse it
Don't confuse with 'work hard' (verb phrase) or 'hardworking' (adjective). 'Hard worker' is a noun.