| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] for | 1269 |
|
| 2 | it is [adv] essential [prep] | 35 |
|
| 3 | it [be] [adv] essential for | 30 |
|
| 4 | it be [adv] essential for | 30 |
|
| 5 | it [is] [adv] essential for | 26 |
|
| 6 | [pron] is [adv] essential for | 26 |
|
| 7 | it is [adv] essential for | 24 |
|
| 8 | [pers pn] is [adv] essential for | 24 |
|
