| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on [det] [prep] [art] | 731 |
|
| 2 | a [det] [prep] [art] | 538 |
|
| 3 | on a [prep] [art] | 45 |
|
| 4 | on a [det] [prep] | 13 |
|
