Example sentences of "are usually a [noun sg] " in BNC.

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1 Unfortunately , most yarns these days are usually a mixture of acrylic or man-made fibres with tough , unbreakable qualities and they are also non-biodegradable .
2 In Setting up a closed.loop Stepping motor control the choice of appropriate points for deceleration initiation can be very difficult , because the load torque characteristics , which are usually a function of speed , may be ill-defined or may be expected to vary over the life expectancy of the system .
3 Needless to say , confrontations with strong-willed horses , or indeed any horse , are usually a battle lost .
4 Although such developments are usually a sign of a firm 's success they are not by any means free from potential difficulty which should be resolved before final decisions are taken .
5 Since men are usually a bit taller than their female partners , it 's easier if the man can stand so that he 's a little lower than his partner .
6 Like job applicants there are usually a host of competitors vying for attention .
7 This is similar to the system used in supermarkets , except that in self-selection stores there are usually a number of ‘ service points ’ and several different exits .
8 In the latter case these are usually an oversimplification because there is an underlying assumption that decisions are being made in a simple logical sequence .
9 The letters are usually an abbreviation of the program 's name , for example , WP for WordPerfect .
10 These conditioned psychological needs are usually an extension of a horse 's normal essential requirements ; and sometimes they are advantageous to us in our relationship with horses , but sometimes they are not .
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