| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] vital that [det] | 6 |
|
| 2 | it [is] [adv] vital that [det] | 6 |
|
| 3 | it [is] vital that [det] [noun] | 16 |
|
| 4 | it [is] vital that [det] [noun pl] | 10 |
|
| 5 | it [is] vital that [det] [noun sg] | 6 |
|
