| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [prep] | 149074 |
|
| 2 | [prep] [noun] [noun] [prep] | 75102 |
|
| 3 | [prep] a [noun] [noun] | 70564 |
|
| 4 | a [noun] [noun] [prep] | 38511 |
|
