| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [that] all | 100 |
|
| 2 | it is essential [that] [adj] | 81 |
|
| 3 | it is essential [that] [det] | 58 |
|
| 4 | it [be] essential [that] all | 18 |
|
| 5 | it be essential [that] all | 18 |
|
| 6 | it [is] essential [that] all | 18 |
|
| 7 | [pron] is essential [that] all | 17 |
|
| 8 | [pers pn] is essential [that] all | 17 |
|
| 9 | it is essential [that] all | 17 |
|
| 10 | it is essential [conj] all | 17 |
|
| 11 | it is essential [that] all | 17 |
|
