Example sentences of "be often difficult [verb] [adj] " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | 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 . |
| 2 | In practice it is often difficult to define bibliographical types in a way that gives a reliable guide to content , and the selector is best advised to look at each bibliography individually . |
| 3 | 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 . |
| 4 | In matters relating to the social sciences , the number of variables is large and hence it is often difficult to establish valid theories of cause and effect . |
| 5 | A major problem with the operation of restrictive practices legislation is that it is often difficult to capture secret or verbal agreements between firms . |
| 6 | It was often difficult to persuade able men to accept diplomatic posts in distant capitals . |