| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] on a | 17262 |
|
| 2 | [verb] on [noun prp] | 15604 |
|
| 3 | [verb] a [noun prp] | 4424 |
|
| 4 | on a [noun prp] | 1996 |
|
