Example sentences of "before have not they " in BNC.
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1 | Yeah but they 've been open chillers as opposed to closed chillers before have n't they . |
2 | they 've done this before have n't they ? |
3 | Somebody 's had it before have n't they ? |
4 | They 've been before have n't they ? |
5 | They have been here before have n't they ? |