Example sentences of "have [been] [verb] [prep] over a " in BNC.

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1 Apparently it has been recognised for over a decade that chlorine from chlorofluorocarbons may deplete the stratospheric ozone layer .
2 It has been recognised for over a century that the internal anal sphincter relaxes in response to rectal distension , a phenomenon called the rectanal inhibitory reflex .
3 The reef , described by the World Conservation Union as more diverse than Australia 's Great Barrier reef , has been threatened for over a decade by the proposed building of a second airport for the island .
4 I mean the doctor was no help and I 'd been waiting for over a coupla months to get into the Clinic for a detox .
5 Officials say the dogs had been starved for over a month .
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