| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] it [adj] [verb] [adj] | 105 |
|
| 2 | [verb] it necessary [verb] [adj] | 47 |
|
| 3 | [vb infin] [pron] necessary [verb] [adj] | 15 |
|
| 4 | [vb infin] [pers pn] necessary [verb] [adj] | 15 |
|
| 5 | [vb infin] it necessary [verb] [adj] | 15 |
|
