| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] [prep] | 163355 |
|
| 2 | [prep] a [noun sg] on | 6574 |
|
| 3 | a [noun sg] [prep] on | 34 |
|
| 4 | [prep] [noun sg] [prep] on | 14 |
|
