| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [verb] some [noun] | 59 |
|
| 2 | it is essential [verb] [adj] [noun] | 21 |
|
| 3 | it be essential [verb] some [noun] | 7 |
|
| 4 | it [is] essential [verb] some [noun] | 7 |
|
| 5 | it [be] essential [verb] some [noun] | 7 |
|
| 6 | it is essential [verb] some [noun] | 5 |
|
| 7 | [pron] is essential [verb] some [noun] | 5 |
|
| 8 | [pers pn] is essential [verb] some [noun] | 5 |
|
