| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] be useful [conj] it [verb] | 9 |
|
| 2 | [noun sg] be useful [conj] it [verb] | 8 |
|
| 3 | be [adv] useful [conj] it [verb] | 15 |
|
| 4 | be [adv] useful [conj] it [verb] | 15 |
|
| 5 | be very useful [conj] it [verb] | 6 |
|
| 6 | be very useful [conj] it [verb] | 6 |
|
| 7 | be useful [conj] it [verb] [art] | 7 |
|
| 8 | be useful [conj] it [verb] [art] | 7 |
|
| 9 | be useful [conj] it [verb] the | 6 |
|
| 10 | be useful [conj] it [verb] the | 6 |
|
