| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is [adj] for [pron] | 623 |
|
| 2 | [pron] [be] essential for [pron] | 11 |
|
| 3 | [pron] be essential for [pron] | 11 |
|
| 4 | [pron] is essential [prep] [pron] | 11 |
|
| 5 | [pron] [is] essential for [pron] | 7 |
|
