| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] trouble | 264 |
|
| 2 | [art] trouble [to-vb] | 167 |
|
| 3 | [prep] [art] [to-vb] | 48 |
|
| 4 | [prep] trouble [to-vb] | 35 |
|
