| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [noun sg] [vb mod] be useful | 22 |
|
| 2 | this [noun sg] [vb mod] [be] useful | 22 |
|
| 3 | this [noun sg] [vb mod] be useful | 22 |
|
| 4 | this [noun sg] [vb mod] [be] useful | 22 |
|
| 5 | this [noun sg] will [be] useful | 10 |
|
| 6 | this approach [vb mod] [be] useful | 6 |
|
| 7 | this [noun sg] would [be] useful | 5 |
|
