| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb mod] [be] found | 1639 |
|
| 2 | problem [vb mod] [be] [verb] | 428 |
|
| 3 | problem [vb mod] [be] [vb pp] | 407 |
|
| 4 | problem [vb mod] [be] find | 16 |
|
| 5 | problem [modal v] [be] found | 13 |
|
