Example sentences of "have been two [noun] of " in BNC.

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1 However there have been two periods of pantograph operation on a limited scale : from 1927–33 and again from 1974 .
2 Thus there have been two periods of renewal and change ; during 1971–76 and again between 1984–90 .
3 There have been two studies of the maturity-volume relationship for index futures .
4 There have been two benefactors of note .
5 Broadly , there have been two ways of ‘ going modular ’ , each with several internal dimensions and variables .
6 Fiscal stability and governmental co-operation have been two features of the tax regime in the past which have encouraged investment in the UK . ’
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