| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be referred [prep] | 12 |
|
| 2 | [noun sg] must be referred [prep] | 9 |
|
| 3 | [pron] must be referred [prep] | 5 |
|
| 4 | must be referred [prep] [art] | 7 |
|
| 5 | must be referred [prep] the | 7 |
|
| 6 | must be referred [prep] [art] | 7 |
|
| 7 | must be referred [prep] the | 7 |
|
| 8 | must be referred [prep] [noun] | 5 |
|
