| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a report [vb pp] [prep] [art] un | 5 |
|
| 2 | a report [verb] [prep] [art] un | 5 |
|
| 3 | a report [prep] [art] un [noun] | 8 |
|
| 4 | a report [prep] [art] un [noun sg] | 8 |
|
