Example sentences of "[Wh adv] do [pers pn] know how " in BNC.

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1 Second , how do they know how far they can go ?
2 How do we know how difficult something is ?
3 The problem here is an obvious one and has already been alluded to , namely how do we know how good an indicator is if we can not compare the phenomenon with the indicator ?
4 ‘ Besides , how do you know how much money Harry has ? ’
5 How do you know how much memory you 've got , on your P C ?
6 " How do you know how old it is ? "
7 And , and where do you , how do you know how many points you 've got ?
8 How do I know how the secondment is going ?
9 a price on them , how do I know how much
10 Why do we know how much be ? .
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