| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] necessary for | 96 |
|
| 2 | it be [adv] for [det] | 83 |
|
| 3 | it be necessary for [det] | 13 |
|
| 4 | be [adv] necessary for [det] | 5 |
|
