| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] it is [adj] that [art] | 104 |
|
| 2 | [noun] it is essential that [art] | 15 |
|
| 3 | [noun sg] it be essential that [art] | 10 |
|
| 4 | [noun sg] it is essential that [art] | 10 |
|
| 5 | [noun sg] it [be] essential that [art] | 10 |
|
| 6 | [noun sg] [pron] is essential that [art] | 10 |
|
| 7 | [noun sg] it is essential [conj] [art] | 10 |
|
| 8 | [noun sg] [pers pn] is essential that [art] | 10 |
|
| 9 | [noun sg] it [is] essential that [art] | 10 |
|
