| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | useful [prep] this [noun sg] | 45 |
|
| 2 | useful in this [noun sg] | 17 |
|
| 3 | useful in this [noun sg] | 17 |
|
| 4 | useful at this [noun sg] | 13 |
|
| 5 | useful at this [noun sg] | 13 |
|
| 6 | useful for this [noun sg] | 12 |
|
| 7 | useful for this [noun sg] | 12 |
|
| 8 | useful [prep] this respect | 8 |
|
| 9 | useful [prep] this stage | 7 |
|
| 10 | useful [prep] this purpose | 6 |
|
| 11 | useful [prep] this point | 6 |
|
