| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] | 407839 |
|
| 2 | [prep] [unc] [noun sg] | 3266 |
|
| 3 | [prep] a [unc] | 1810 |
|
| 4 | a [unc] [noun sg] | 1520 |
|
