| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] vital that [det] | 21 |
|
| 2 | it is vital that [det] | 19 |
|
| 3 | it [is] vital that all | 8 |
|
| 4 | it [is] vital that this | 5 |
|
