Example sentences of "may have [vb pp] a long [noun] " in BNC.

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1 We may have met a long time ago at Rotherfield when I was on a weekend outing from school , but I would n't expect you to remember — it was at least 10 years ago and I ca n't imagine I was a memorable schoolgirl !
2 But it gives no indication that the pricing problems may have had a long history .
3 This week 's extension of the suspension has lead to a further letter to unit trust holders.But it gives no indication that the pricing problems may have had a long history .
4 The ozone pollution problem may have had a long association with southern California but it has now become a very serious problem in the Texas Gulf coast , the north-east corridor , and other heavily populated regions ( figure 8.11 ) .
5 The hurt itself may have happened a long time ago , and may even be something that you have forgotten all about .
6 Diesel technology may have come a long way , but even a BMW lets out a puff or two of blue smoke when starting from cold , and takes a minute or two to settle into its stride .
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