| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problems that [adj] [modal v] [verb] | 6 |
|
| 2 | problems that [adj] [modal v] [vb infin] | 6 |
|
| 3 | problems that [det] [modal v] [verb] | 6 |
|
| 4 | problems that [adj] [vb mod] [verb] | 6 |
|
| 5 | problems that this [modal v] [verb] | 5 |
|
| 6 | problems that [adj] [modal v] cause | 5 |
|
| 7 | problems that [adj] [modal v] cause | 5 |
|
| 8 | problems that this [modal v] [verb] | 5 |
|
