| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] [prep] | 168932 |
|
| 2 | [prep] a [noun] [conj] | 37774 |
|
| 3 | [prep] [noun] [conj] [prep] | 18096 |
|
| 4 | a [noun] [conj] [prep] | 2841 |
|
