How to say in Czech: But they have not eaten anything!

English
But have not eaten anything!
Czech
Ale oni nic nesnědli!
They only eat vegetarian food.
Would you like to eat something?
Eat whatever you like.
I’m used to eating alone.
Let’s get something to eat.
They have not lost anything.
They are not writing anything.
They do not remember anything.
Have they forgotten anything?
Have they lost anything?

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