| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] essential [conj] [pers pn] [vb base] | 64 |
|
| 2 | [is] [conj] [pers pn] [vb base] [pos pn] | 42 |
|
| 3 | essential [conj] [pers pn] [vb base] [pos pn] | 9 |
|
