Example sentences of "[vb infin] [been] formed [prep] [adj] " in BNC.

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1 Divisions may have been formed for administrative or historical reasons , which do not necessarily produce organizational units which are identical with SBUs .
2 Indeed , the Stamford Taurus might have been formed by early Mycenean settlers , as a representation of a Mycenean dagger carved into Stonehenge proves that people of that race were in Britain at the time .
3 Were these merely eddies in the mud on the bottom of the primeval seas or could they have been formed by living organisms ?
4 Similarly , if the gravitational mass of the proton were significantly different , one would not have had stars in which these nucleides could have been built up , and if the initial expansion of the universe had been slightly smaller or slightly greater , the universe would either have collapsed before such stars could have evolved or would have expanded so rapidly that stars would never have been formed by gravitational condensation .
5 For example , our solar system is certainly a prerequisite for our existence , as is an earlier generation of nearby stars in which heavy elements could have been formed by nuclear synthesis .
6 Darwin wrote ( in The Origin of Species ) : If it could be demonstrated that any complex organ existed which could not possibly have been formed by numerous successive slight modifications , my theory would absolutely break down .
7 One hundred and twenty five years on , we know a lot more about animals and plants than Darwin did , and still not a single case is known to me of a complex organ that could not have been formed by numerous successive slight modifications .
8 ‘ TO SUPPOSE that the eye , with all its inimitable contrivances … could have been formed by natural selection , seems , I freely confess , absurd in the highest degree . ’
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