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"While" refers to simultaneous (happening at the same time) events, actions. "When" can be any time. Note, British English users often use the word, "Whilst," which is not used by Americans; but they would still know what it meant. Again, see Encarta World English Dictionary.
What else can I help you with?
Is it OK to use an iMac while it's charging?
Yes, you can use it while it is plugged in.
Can you use your passport while it is being renewed?
No, you cannot use your passport while it is being renewed.
Do laptops need to be charged when not in use?
It depends. If you don't want to charge it while in use, then you can charge them when not in use. But if you always charge it when you are using it, then you probably don't have too. But if you only charge it sometimes while in use, I'd charge it while in use.
What are the materials used in inventing cars?
you do not use materials while inventing. you use materials while buiding
Is it dangerous to use a cell phone while it is recharging?
No, it is not dangerous to use a cell phone while it is recharging.
How can you use while in a sentence?
It may take me a while to answer your question.
What instrument do you use while playing a bass drum?
You use the ... bass drum while playing the bass drum ... (?)
Can you use 2 hands while playing Jenga?
No, you can only use one hand while playing Jenga.
Can you use both hands while playing Jenga?
Yes, you can use both hands while playing Jenga.
Can you use two hands while playing Jenga?
Yes, you can use two hands while playing Jenga.
Can a toaster kill you while in use?
No, a toaster cannot kill you while in use as long as it is used properly and not tampered with.
What muscles do you use while biking?
You use the muscles in your body.
