Example sentences of "[conj] [pron] is often difficult [verb] " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | This separation is a useful distinction , although it is often difficult to make in practice . |
| 2 | Experience shows that it is often difficult to assess the extent of exposure to light that samples receive in the market and hence to estimate the degree of exaggeration or acceleration that any one test gives . |
| 3 | It should be noted that it is often difficult to compare different recognition systems as they are reported because differences in input data and equipment can affect performance . |
| 4 | The receipt of such a bonus has an effect far outside the regular annual rise , which again in the case of ICI is a matter of such Byzantine complexity that it is often difficult to know whether one is getting a good or a bad one ! |
| 5 | The Commission points out that it is often difficult to attribute responsibility , especially when damage is the cumulative result of activities undertaken by many parties . |
| 6 | A major problem with the operation of restrictive practices legislation is that it is often difficult to capture secret or verbal agreements between firms . |
| 7 | Native speakers do not recognise this , but foreign learners of English notice that it is often difficult to hear the unstressed parts of a word in ordinary speech . |
| 8 | It must be remembered that it is often difficult to get people to express themselves freely , that there is a tendency in any survey for interviewees to say what they think they are expected to say , and that individuals frequently find it hard to express subjective views on an aspect of their life which they might never have consciously considered before . |
| 9 | The problem is that it is often difficult to determine how long an individual has been drinking . |
| 10 | This brief examination of the inter-relationships between family , migration and urbanization should serve to illustrate the point that it is often difficult to establish any clear pattern of causation . |
| 11 | No one can predict the sales success of an ad , and it is often difficult to measure the success even afterwards . |
| 12 | Some delays are inevitable , and it is often difficult to get round them , but that is no one 's fault . |
| 13 | Membership is gained consciously or unconsciously and it is often difficult to determine the time when a person becomes a member . |
| 14 | It must be remembered that hyperlipidaemia in a well-controlled diabetic may also represent a primary familial disorder , and it is often difficult to differentiate between this and diabetes complicated by hypertriglyceridaemia . |
| 15 | They can be irritatingly slow to publish , and it is often difficult to know how they spend their time . |
| 16 | A chance finding , outside the mainstream of scientific research , can sometimes be very valuable , but it is often difficult to see its potential . |
| 17 | But it is often difficult to judge . |
| 18 | Other places were also hit savagely from time to time , but it is often difficult to tell from the registers which particular disease was responsible for an unusually high number of deaths . |
| 19 | By changing the excitation frequency we can probe the upper-state vibrational levels , but it is often difficult to identify the ν'=; 0 level , which may have low probability of excitation or emission . |
| 20 | Chief vet at the Fromus surgery Michael Hill said : ‘ It is not a common operation because it is often difficult to find a suitable donor dog . |
| 21 | Since it is often difficult to translate mathematical concepts into words ( see London Regional Transport v Wimpey Group Construction [ 1986 ] 2 EGLR 41 for judicial commendation of algebra ) , the formula must be checked mathematically either with a calculator or a computer . |
| 22 | Practise on your own child since it is often difficult to find a pulse in an emergency . |