| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a useful [noun] [prep] | 909 |
|
| 2 | a useful [noun sg] [prep] | 868 |
|
| 3 | a useful [noun] of | 376 |
|
| 4 | a useful [noun] to | 173 |
|
| 5 | a useful [noun] for | 156 |
|
| 6 | a useful [noun] in | 99 |
|
| 7 | a useful way [prep] | 66 |
|
| 8 | a useful way [prep] | 66 |
|
| 9 | a useful source [prep] | 48 |
|
| 10 | a useful source [prep] | 48 |
|
| 11 | a useful [n mass] [prep] | 41 |
|
| 12 | a useful means [prep] | 37 |
|
| 13 | a useful means [prep] | 37 |
|
| 14 | a useful addition [prep] | 28 |
|
| 15 | a useful addition [prep] | 28 |
|
| 16 | a useful [noun] on | 25 |
|
| 17 | a useful guide [prep] | 22 |
|
| 18 | a useful guide [prep] | 22 |
|
| 19 | a useful introduction [prep] | 20 |
|
| 20 | a useful tool [prep] | 20 |
|
| 21 | a useful introduction [prep] | 20 |
|
| 22 | a useful tool [prep] | 20 |
|
| 23 | a useful role [prep] | 16 |
|
| 24 | a useful role [prep] | 16 |
|
| 25 | a useful [noun] with | 15 |
|
| 26 | a useful indicator [prep] | 15 |
|
| 27 | a useful contribution [prep] | 15 |
|
| 28 | a useful contribution [prep] | 15 |
|
| 29 | a useful indicator [prep] | 15 |
|
| 30 | a useful [noun] by | 14 |
|
