| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] useful for [det] [noun] | 17 |
|
| 2 | [adv] useful for [det] [noun sg] | 12 |
|
| 3 | [adv] useful for this [noun] | 7 |
|
| 4 | [adv] useful for [det] [noun pl] | 7 |
|
| 5 | very useful for [det] [noun] | 5 |
|
| 6 | [adv] useful for [det] purpose | 5 |
|
| 7 | [adv] useful for [det] purpose | 5 |
|
| 8 | very useful for [det] [noun] | 5 |
|
