| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [is] essential that [det] [noun pl] | 22 |
|
| 2 | it [is] essential that [det] [noun pl] | 22 |
|
| 3 | [pers pn] [is] essential that [det] [noun pl] | 22 |
|
| 4 | it [is] essential that [det] [noun pl] | 22 |
|
| 5 | [is] essential that [det] [noun pl] be | 8 |
|
| 6 | [is] essential that [det] [noun pl] [am/are] | 8 |
|
| 7 | [is] essential that [det] [noun pl] [be] | 8 |
|
| 8 | [is] essential that [det] [noun pl] are | 5 |
|
