The whole sentence is

It showed someone in the castle. Someone I know to be dead.

I think it is the same as this

Someone who I know to be dead.

and this.

I know someone to be dead.

Is it correct? and Is "to be dead" an idiom that expresses state of someone/something?

1 Answer 1


If you know someone to be in a certain condition, you know that they are in that condition. Your sentence could be rewritten as

Someone who, I know, is dead.

Someone refers to the 'someone' mentioned in the first sentence.

I know someone to be dead

is a different sentence, indicating what you know.

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