| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] essential [conj] [adj] [noun] | 20 |
|
| 2 | it [be] essential that [adj] [noun] | 20 |
|
| 3 | it [be] essential [that] [adj] [noun] | 20 |
|
| 4 | it [is] essential [conj] [adj] [noun] | 20 |
|
| 5 | it [be] essential that [adj] [noun] | 20 |
|
| 6 | it be essential [conj] [adj] [noun] | 20 |
|
| 7 | it [be] essential [conj] [adj] [noun] | 20 |
|
| 8 | it is essential [conj] [adj] [noun] | 19 |
|
| 9 | it [be] essential [conj] [adj] [noun pl] | 10 |
|
| 10 | it [be] essential [conj] [adj] [noun sg] | 9 |
|
