| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how necessary it [be] for | 5 |
|
| 2 | how necessary it [be] for | 5 |
|
| 3 | [adv] necessary it [be] for | 5 |
|
| 4 | [Wh adv] necessary it [be] for | 5 |
|
