| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] useful for [verb] [conj] | 7 |
|
| 2 | be useful for [verb] [conj] | 7 |
|
| 3 | information useful for [verb] [conj] | 6 |
|
| 4 | information useful for [verb] [conj] | 6 |
|
| 5 | [noun] useful for [verb] [conj] | 6 |
|
| 6 | [noun sg] useful for [verb] [conj] | 6 |
|
| 7 | useful for [verb] [noun] [conj] | 20 |
|
| 8 | useful for [verb] [noun pl] [conj] | 15 |
|
| 9 | useful for [verb] [noun sg] [conj] | 5 |
|
| 10 | useful for [verb] [conj] [v-ing] | 10 |
|
| 11 | useful for [verb] [conj] [verb] | 10 |
|
