| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [vb mod] [verb] in | 341 |
|
| 2 | [noun sg] [vb mod] [verb] useful | 30 |
|
| 3 | [vb mod] [verb] in useful | 30 |
|
| 4 | [noun sg] [verb] in useful | 8 |
|
