Example sentences of "allowance has to [be] made " in BNC.

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1 Sometimes when the changes are slower it can be more difficult because allowance has to be made for the natural variations that occur hour by hour in an illness even without any treatment .
2 Of course , it is more complex than that because allowance has to be made for convergent evolution , which is the acquisition of common characteristics by virtue of having been subjected to the same selection pressures , rather than because of sharing a common ancestor .
3 Estimates are not too easy , because the only useful comparison stars — Procyon , Aldebaran and Rigel — are always at different altitudes , and allowance has to be made for extinction ( that is to say , the dimming of a low-altitude star due to the Earth 's atmosphere ) .
4 Government claims on waiting lists were also substantiated , although allowance has to be made for reductions achieved clerically rather than clinically .
5 Yet in order to understand the present pattern and appearance of settlements , allowance has to be made for varying degrees of change occurring in the past .
6 A PC-based analyser is ideal in that it is impartial , on-hand , and quick , but due allowance has to be made for the particular type of text .
7 To calculate the size of gutter needed to cope with this amount of rain , allowance has to be made for the fact that the wind will tend to drive more rain on to the roof than would simply fall on the ca flat plan area .
8 In such instances allowance has to be made for these features when planning the design , so much so that at Woodchester Orpheus may , for this reason , have been displaced from his usual , central position ( pI .
9 Recall from Chapter 12 that an allowance has to be made for the fact that a given sum of money to be received in the future is worth less than the same sum received now .
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