Example sentences of "must [verb] [subord] [noun sg] is " in BNC.

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1 Even the biggest stars rarely sell 6m copies ( as Janet must do if Virgin is to make a profit ) for more than a couple of records .
2 Yet , as we have seen , there is a symbiotic relationship between the formal codes of the laws of war and the generally accepted rules which must apply if humanity is to triumph over warfare .
3 This framework must change if action is to be effective .
4 Once again , one must question whether consistency is the highest value here .
5 The speaker 's ability to plan utterances is not sufficiently good to allow planning and production to co-occur smoothly and without interference ; and so there are periods when production must suffer if planning is to proceed .
6 We must ask whether performance is less important than general structural change in individual areas as well .
7 It was pointed out by Wragg and Robertson ( 1978 ) that total factor productivity must rise if growth is to be sustained .
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