| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the problems [prep] the | 337 |
|
| 2 | the problems of the | 235 |
|
| 3 | the problems with the | 36 |
|
| 4 | the problems in the | 18 |
|
| 5 | the problems for the | 14 |
|
| 6 | the problems on the | 8 |
|
| 7 | the problems at the | 7 |
|
| 8 | the problems within the | 5 |
|
