| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] problems for [adj] | 6 |
|
| 2 | [modal v] [vb infin] problems for [adj] | 6 |
|
| 3 | [vb infin] [adj] problems for [adj] | 8 |
|
| 4 | [vb infin] [adj] problems for [adj] | 7 |
|
| 5 | [vb infin] problems for [adj] [noun] | 7 |
|
