| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] | 5806 |
|
| 2 | it is helpful [verb] | 91 |
|
| 3 | it is [adv] helpful | 69 |
|
| 4 | is [adv] helpful [verb] | 45 |
|
| 5 | it [adv] helpful [verb] | 7 |
|
