Example sentences of "which have [been] [prep] [noun sg] since " in BNC.
Next page| No | Sentence |
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| 1 | Users of the ‘ Pentium-ready ’ personal computer systems which have been on sale since the middle of last year — Intel Corp 80486-based boxes with a Pentium upgrade socket — wo n't get their OverDrive Pentiums , code-named the P24T , which plugs into the socket , until next year ( UX No 424 ) . |
| 2 | These will vary according to the weather and demand , but should include a visit to Wieliczka , famous for its salt miles which have been in existence since the 13th century . |
| 3 | English Nature 's Derek Langslow defines ancient woodlands as those which have been in existence since the 16th century or earlier . |
| 4 | But other changes in the tax system should mean huge gains for companies with shares in the giant Brent and Forties oilfields , the UK 's two largest finds which have been in production since the 1970s . |
| 5 | It added that the procedures which have been in force since June 1988 for the screening of Vietnamese arrivals should be suspended forthwith . |