| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem that can [vb infin] | 17 |
|
| 2 | problem that can [verb] | 17 |
|
| 3 | problems that can [verb] | 11 |
|
| 4 | problem that can arise | 9 |
|
| 5 | problem that can arise | 9 |
|
| 6 | problem that can [verb] | 6 |
|
