| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] problems that [vb mod] [verb] | 10 |
|
| 2 | [prep] problems that [vb mod] [verb] | 10 |
|
| 3 | [prep] problems that [vb mod] [vb infin] | 9 |
|
| 4 | of problems that [vb mod] [verb] | 6 |
|
| 5 | of problems that [vb mod] [verb] | 6 |
|
