| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [adj] for | 183 |
|
| 2 | [conj] it is necessary for | 30 |
|
| 3 | [subord] it is necessary [prep] | 24 |
|
| 4 | [subord] it be necessary for | 20 |
|
| 5 | [subord] it [be] necessary for | 20 |
|
| 6 | [subord] it [is] necessary for | 14 |
|
| 7 | [subord] it is necessary for | 14 |
|
| 8 | [subord] [pron] is necessary for | 14 |
|
| 9 | [subord] [pers pn] is necessary for | 14 |
|
