How to say in Czech: Do they need anything?

English
Do need anything?
Czech
Potřebují něco?
Do they need anything else?
They do not remember anything.
They never forget anything.
Are they allergic to anything?
But they have not eaten anything!
Have they forgotten anything?
Have they lost anything?
They are not writing anything.
They can write about anything.
They didn’t write anything.

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