| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [is] [adj] for | 231 |
|
| 2 | [conj] it [is] essential for | 18 |
|
| 3 | [subord] it [is] essential [prep] | 9 |
|
| 4 | [subord] it [be] essential for | 7 |
|
| 5 | [subord] it [is] essential for | 6 |
|
| 6 | [subord] [pron] [is] essential for | 6 |
|
| 7 | [subord] [pers pn] [is] essential for | 6 |
|
