| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] for | 2026 |
|
| 2 | it is [adj] for | 1927 |
|
| 3 | it is essential [prep] | 101 |
|
| 4 | [pron] is essential for | 92 |
|
| 5 | it [be] essential for | 90 |
|
| 6 | it be essential for | 90 |
|
| 7 | it [is] essential for | 74 |
|
| 8 | [pers pn] is essential for | 71 |
|
| 9 | it is essential for | 71 |
|
| 10 | it is essential for | 71 |
|
