Be aware of means to know about something and keep it in mind. It is most often used about risks, rules, changes and problems: be aware of the risks. After aware, you can also use a full clause with that.
Want to remember be aware of?
Write a sentence — we'll show the mistakes right away and suggest how to say it more naturally.
The check is taking longer than usual. Your feedback will appear here automatically.
be aware of + noun/-ing; be aware that + clause; become aware of + noun
- Travellers should be aware of the new rules for liquids in hand luggage.
- Most students are aware that copying essays from the internet is against the rules.
- The manager is aware of the problem and has promised to fix it by Friday.
What changed
First versionAre you aware about the changes to the timetable?
RevisionAre you aware of the changes to the timetable?
After aware you need of. About is tempting because it works with know: know about the changes. With aware it doesn't; only aware of is correct.
Be aware of describes a state: you already know something and keep it in mind. The moment when something suddenly becomes clear to you is expressed with realise: I suddenly realised that I had left my passport at the hotel. Learning about something for the first time is become aware of.
Your turn
Sorry, I ___ aware that the meeting had been moved to Tuesday.
Show the answer
wasn't — Aware describes a state, like ready or sure, not an action. So it needs be: I wasn't aware. Didn't aware sounds just as wrong as didn't ready.
Warn a new colleague or classmate about a rule or risk they should know about. Explain what will happen if they ignore it.
Be aware of the rule about late essays, because the system closes at midnight and won't accept anything after that.
Learn to use new words without mistakes
Write phrases with the words you are learning. LetsWords shows mistakes in usage and grammar, suggests corrections and explains them, and review helps the words stick.