| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] be necessary for | 70 |
|
| 2 | [coord] it [modal v] be necessary | 37 |
|
| 3 | [coord] it [modal v] be for | 18 |
|
| 4 | [coord] it be necessary for | 11 |
|
