Example sentences of "and [adj] when [noun sg] " in BNC.

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1 The rare genetic disorder strikes apparently healthy boys between the ages of five and 12 when myelin , the fatty insulating sheath that surrounds nerve fibres , begins to disintegrate .
2 By and large , the occasions when the nobility might exploit a situation as cavalry and those when artillery could be used to best effect were not the same .
3 He joined the Meteorological Society in 1871 and was its foreign secretary from 1873 until his death , apart from 1880–1 when secretary and 1884–5 when president .
4 A boom period of speculative house building peaked between 1928 and 1936 when construction of 118,000 dwellings annually increased to 293,000 .
5 To a certain extent turnover follows that of the cash market in government securities : it rose in 1987 following the start of the new trading arrangements for gilt-edged securities and it fell in 1988 and 1989 when government accounts moved into surplus and there was a cessation of new issues .
6 Nevertheless , this decline took place during the late 1940s and 1950s when council housing was increasing .
7 From just 25p a day , you can help protect your dependents against the crippling financial penalty of losing a parent or partner — and secure yourself a cash payout … at the age of 65 if you 're aged between 18 and 54 when cover commences , or after ten years if you 're aged between 55 and 69 .
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