| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adj] that [art] [noun sg] | 1565 |
|
| 2 | [is] essential that [art] [noun] | 89 |
|
| 3 | [is] essential [conj] [art] [noun sg] | 81 |
|
| 4 | [be] essential that [art] [noun sg] | 71 |
|
| 5 | [is] essential [that] [art] [noun sg] | 65 |
|
| 6 | [is] essential that [art] [noun sg] | 65 |
|
