| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] useful [prep] [verb] | 27 |
|
| 2 | [noun] useful [prep] [v-ing] | 27 |
|
| 3 | [noun] useful for [verb] | 21 |
|
| 4 | [noun sg] useful [prep] [verb] | 18 |
|
| 5 | information useful [prep] [verb] | 12 |
|
| 6 | information useful [prep] [verb] | 12 |
|
| 7 | [noun pl] useful [prep] [verb] | 8 |
|
| 8 | [noun] useful in [verb] | 6 |
|
