| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [pers pn] [is] necessary [prep] | 10 |
|
| 2 | [adv] it [is] necessary [prep] | 10 |
|
| 3 | [adv] [pron] [is] necessary [prep] | 10 |
|
| 4 | [adv] it [is] necessary [prep] | 10 |
|
| 5 | [adv] [conj] [is] necessary [prep] | 5 |
|
| 6 | [adv] [noun] [is] necessary [prep] | 5 |
|
| 7 | [adv] [is] [pers pn] necessary [prep] | 6 |
|
| 8 | [adv] [is] it necessary [prep] | 6 |
|
| 9 | [adv] [is] [pron] necessary [prep] | 6 |
|
| 10 | [adv] [is] it necessary [prep] | 6 |
|
