| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] it be | 1963 |
|
| 2 | [adv] necessary [pers pn] be | 13 |
|
| 3 | [adv] necessary [pron] be | 13 |
|
| 4 | [adv] necessary it [be] | 12 |
|
| 5 | [adv] necessary it be | 12 |
|
