| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be that [pron] [verb] | 229 |
|
| 2 | it be essential that [pron] | 119 |
|
| 3 | be essential that [pron] [verb] | 67 |
|
| 4 | it be essential [pron] [verb] | 10 |
|
| 5 | it be essential that [verb] | 7 |
|
