| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it [adj] [to-vb] [det] [noun] | 23 |
|
| 2 | [verb] it necessary [to-vb] [det] [noun] | 16 |
|
| 3 | [vb past] it necessary [to-vb] [adj] [noun] | 12 |
|
| 4 | [vb past] it necessary [verb] [det] [noun] | 6 |
|
| 5 | [vb past] it necessary [to-vb] [det] [noun] | 6 |
|
| 6 | [vb past] [pers pn] necessary [to-vb] [det] [noun] | 6 |
|
| 7 | [vb past] [pron] necessary [to-vb] [det] [noun] | 6 |
|
