| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] vital that [det] [noun pl] | 11 |
|
| 2 | [pers pn] be vital that [det] [noun pl] | 11 |
|
| 3 | [pers pn] [is] vital that [det] [noun pl] | 10 |
|
| 4 | [pers pn] is vital that [det] [noun pl] | 10 |
|
| 5 | [pers pn] [be] vital that all [noun pl] | 5 |
|
