| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adj] [that] [adj] | 1865 |
|
| 2 | [pers pn] [be] essential [that] [adj] | 89 |
|
| 3 | it [be] essential [conj] [adj] | 89 |
|
| 4 | [pron] [be] essential [that] [adj] | 89 |
|
| 5 | it [be] essential [that] [adj] | 89 |
|
