Example sentences of "[vb pp] [conj] have [adv] [adv] [verb] " in BNC.

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1 If it succeeds , it could turn the personal computer business upside down , by delivering what the PC always promised but has never quite achieved : the ability to work where and how you please , no matter what computer you are using or how limited your knowledge .
2 Soon too the horrors that Mr Hussein has promised but has so far failed to deliver may start to materialise : nerve gas , biological weapons , blazing oil fields .
3 Pilger had agreed but had apparently not realized how this weakened his position .
4 She has obtained planning permission for the change of use and has bought some of the equipment needed but has not yet started trading .
5 In Britain the reforms which were introduced in the White Paper Working for Patients in 1989 were never widely understood and have still not won public support .
6 Other evidence collected by COBE supported the theory that up to 90 per cent of the universe was made up of " dark matter " , the presence of which scientists had inferred but had never directly detected .
7 One of the crucial changes brought about by Mrs Thatcher is the attitude of those who have made it and believe that others can do likewise , or , if they fail to do so , are judged as having not really tried .
8 The external pattern of validation and planning for student numbers has posed significant problems to be overcome but has not significantly impaired a dynamic experiment in course development .
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