| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] essential that these [noun] | 5 |
|
| 2 | it [is] essential that these [noun] | 5 |
|
| 3 | it is essential that these [noun] | 5 |
|
| 4 | it be essential that these [noun] | 5 |
|
| 5 | it [be] essential that these [noun pl] | 5 |
|
| 6 | it [be] essential that these [noun] | 5 |
|
