Example sentences of "have been used [verb] [det] [noun] " in BNC.

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1 Since the term was first used funboard has been used to describe any board with a foot strap on it .
2 The language of ‘ conditioning ’ , ‘ brainwashing ’ , ‘ indoctrination ’ , and so forth , has been used to describe this force .
3 Impartiality is a concept which has been used to convey many things .
4 One class of experiment which has been used to investigate this issue involves what is known as a lexical decision task .
5 A range of techniques has been used to avoid this problem , including chromatographic cellulose fibre powder to remove PCR inhibitors from the samples .
6 She also found that a lot of her time which could have been used to produce more goods was being taken up selling goods , collecting debts and generally doing administrative work .
7 The budget could have been used to get this region and the country generally out of recession .
8 Several methods have been used to detect this response , including agglutination , complement fixation , and enzyme linked immunosorbent assay ( ELISA ) .
9 It is free of chlorofluorocarbon gases which have been used to cool most fridges for decades .
10 The gases have been used to cool most types of fridges for decades but are now headed for a world-wide ban in 1996 after being blamed for causing holes in the ozone layer , which shields the earth from the sun 's harmful ultraviolet rays .
11 Several spectroscopic techniques have been used to examine this effect for CO adsorption on single-crystal metal surfaces , but bond energy changes can only be inferred indirectly from these techniques .
12 A number of approaches have been used to achieve this definition .
13 Increasingly sophisticated techniques have been used to solve these problems .
14 Methods have been used to overcome these problems to some degree .
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