| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it is [adj] | 1189 |
|
| 2 | [verb] it is [adj] | 1028 |
|
| 3 | [verb] it [be] necessary | 129 |
|
| 4 | [verb] it be necessary | 129 |
|
| 5 | [verb] it [is] necessary | 93 |
|
| 6 | [verb] [pron] is necessary | 92 |
|
| 7 | [verb] [pers pn] is necessary | 61 |
|
| 8 | [verb] it is necessary | 60 |
|
| 9 | [verb] it is necessary | 60 |
|
