| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] many | 8148 |
|
| 2 | problem [prep] [adj] | 3274 |
|
| 3 | problem [prep] [det] | 1201 |
|
| 4 | problem [prep] many | 81 |
|
| 5 | problem [prep] many | 81 |
|
