| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] for [verb] in | 92 |
|
| 2 | useful for [verb] [prep] | 22 |
|
| 3 | useful [prep] [verb] in | 6 |
|
| 4 | useful [prep] [verb] in | 6 |
|
| 5 | useful for [verb] in | 5 |
|
