Example sentences of "[is] [vb pp] over [art] period [prep] " in BNC.

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1 Travel agents and tour operators often make back to back reservations which means that certain accommodation is booked over a period of time and as one group of guests depart another group takes their place .
2 These proposals will result in a systematic charge to the p&l account for instruments such as deep discount bonds , and will ensure that the premium on convertible bonds incorporating a premium put option is recognised over the period from issue to the exercise date — as is , in fact , already required by UITF Abstract 1 .
3 If this loyalty is stretched over a period of 28 years , it is certainly worthy of note !
4 Such mixture of affective psychosis and schizophrenia may be revealed in changes in the symptom profile that are observed when the person is studied over a period of time , or it may be evident within a single episode of illness .
5 The best effect is achieved over a period of years , but at worst you really ca n't come to much harm .
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