| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be vital that [pron] [verb] | 49 |
|
| 2 | it be vital that [pers pn] [verb] | 48 |
|
| 3 | it be vital that [pron] [vb base] | 44 |
|
| 4 | it is vital that [pron] [verb] | 36 |
|
| 5 | it be vital that we [verb] | 22 |
|
| 6 | it be vital that we [verb] | 22 |
|
| 7 | it be vital that you [verb] | 21 |
|
| 8 | it be vital that you [verb] | 21 |
|
| 9 | it 's vital that [pron] [verb] | 9 |
|
