| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [prep] many | 61 |
|
| 2 | problem for many | 38 |
|
| 3 | problems [prep] many | 20 |
|
| 4 | problem in many | 17 |
|
| 5 | problem with many | 13 |
|
| 6 | problem of many | 6 |
|
