| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pers pn] [to-vb] [adj] [noun] | 448 |
|
| 2 | necessary [prep] [pers pn] [to-vb] [adj] | 19 |
|
| 3 | necessary [prep] [pers pn] [to-vb] [noun] | 8 |
|
