| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [prep] what to do [prep] the | 7 |
|
| 2 | problem of what do [prep] the | 7 |
|
| 3 | problem [prep] what do [prep] the | 7 |
|
| 4 | problem [prep] what do with the | 5 |
|
