| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it is [adj] | 1925 |
|
| 2 | [adv] it is [adj] | 1658 |
|
| 3 | [adv] it [be] necessary | 145 |
|
| 4 | [adv] it be necessary | 145 |
|
| 5 | [adv] it [is] necessary | 117 |
|
| 6 | [adv] [pron] is necessary | 111 |
|
| 7 | [adv] it is necessary | 110 |
|
| 8 | [adv] it is necessary | 110 |
|
| 9 | [adv] [pers pn] is necessary | 110 |
|
