| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | provides a useful [noun] [prep] | 54 |
|
| 2 | provides a useful [noun sg] [prep] | 53 |
|
| 3 | provides a useful [noun] of | 25 |
|
| 4 | provides a useful [noun] for | 13 |
|
| 5 | provides a useful [noun] to | 7 |
|
