| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] | 465207 |
|
| 2 | [prep] [prep] [noun sg] | 3277 |
|
| 3 | [prep] a [prep] | 449 |
|
| 4 | a [prep] [noun sg] | 203 |
|
